Supplements A–Z
256 supplements and the amount we compare each one by. Pick one to compare prices.
256 supplements
A
Açaí powderper 5 g açaí25 pricesDried berries from a palm tree in the Amazon, rich in plant pigments. Sold as a “superfood” – studies in people are few.Not medical advice.
Agmatine sulfateper 500 mg agmatine sulfate22 pricesA substance the body makes from the amino acid arginine. It works as a messenger in the nerves – studies in people are few.Not medical advice.
Aloe veraper serving38 pricesGel or juice from the leaves of the aloe plant. Taken for digestion – studies are small.Not medical advice.
Alpha-GPCper 300 mg alpha-GPC22 pricesA form of choline, found in small amounts in milk. The brain uses choline to make a messenger for memory and muscle control.Not medical advice.
Alpha-lipoic acidper 300 mg alpha-lipoic acid133 pricesA substance the body makes itself. Cells use it to make energy – studied as an antioxidant and for nerves and blood sugar.Not medical advice.
American ginsengper 500 mg American ginseng11 pricesRoot of a ginseng plant from North America. Taken for energy and the immune system – studies are small.Not medical advice.
Amla (Indian gooseberry)per 500 mg amla9 pricesA sour fruit from India, also called Indian gooseberry, rich in vitamin C. Used in Indian medicine – studies on blood fats and blood sugar are small.Not medical advice.
Andrographisper 400 mg andrographis extract18 pricesA bitter herb from South Asia. Taken for the immune system and the throat – some small studies look positive.Not medical advice.
Apigeninper 50 mg apigenin18 pricesA plant compound from chamomile and parsley. Taken for sleep – studies in people are few.Not medical advice.
Apple cider vinegar (capsules & gummies)per 1,000 mg apple cider vinegar63 pricesApple cider vinegar in capsules or gummies. Studied for blood sugar after meals – the effect is small.Not medical advice.
Arjunaper 500 mg arjuna bark5 pricesBark of the arjuna tree from India. Used in Indian medicine for the heart – good studies are few.Not medical advice.
Artichoke leaf extractper 500 mg artichoke extract27 pricesExtract from artichoke leaves. Taken for digestion and the liver – studies are small.Not medical advice.
Ashwagandhaper 600 mg ashwagandha extract118 pricesRoot of a plant from India, related to the tomato. Taken for stress and sleep – several small studies look positive. Rare liver problems have been reported.Not medical advice.
Asian ginseng (Panax ginseng)per 200 mg ginseng extract63 pricesRoot of the Korean or Chinese ginseng plant – red ginseng is steamed. Taken for energy and focus – studies are mixed.Not medical advice.
Astaxanthinper 6 mg astaxanthin59 pricesA red pigment from algae – it makes salmon and shrimp pink. Studied as an antioxidant and taken for skin and eyes – studies are small.Not medical advice.
Astragalusper 500 mg astragalus44 pricesRoot of a plant from China, used in Chinese medicine. Taken for the immune system – studies in people are few.Not medical advice.
Avocado soybean unsaponifiables (ASU)per 300 mg ASUAdd your ownAn extract from avocado and soybean oils. Taken for joints – some studies show a small effect.Not medical advice.
B
Bacopa monnieriper 300 mg bacopa extract31 pricesA small water plant from India, also called brahmi. Taken for memory – some studies show small effects after a few weeks.Not medical advice.
BCAAsper 5 g BCAAs143 pricesThree of the nine essential amino acids: leucine, isoleucine and valine. Muscles use them to build protein – but only together with the other six.Not medical advice.
Bee pollenper 2 g bee pollen15 pricesFlower pollen collected by bees. It adds protein, vitamins and minerals – other effects aren’t proven. Can cause allergies.Not medical advice.
Beef organ supplementsper 3 g organ powder37 pricesDried beef liver, heart and other organs in capsules. Liver is rich in vitamin A, B12 and iron – but capsules hold only small amounts.Not medical advice.
Beetroot & nitrateper 400 mg nitrate1 priceNitrate from beetroot, as juice, shots or powder. Your body turns it into nitric oxide – in studies, muscles then need a bit less oxygen for the same work.Not medical advice.
Berberineper 500 mg berberine128 pricesA yellow, bitter substance from plants like barberry. Studied for blood sugar and blood fats – it can interact with many medicines.Not medical advice.
Beta-alanineper 4 g beta-alanine40 pricesAn amino acid your body turns into carnosine, which buffers acid in muscles during hard efforts of 1–4 minutes. A harmless skin tingle is common.Not medical advice.
Betaine (TMG)per 2.5 g betaine42 pricesA substance from beets, spinach and wheat, also called TMG. The liver uses it to recycle an amino acid that shouldn’t build up in the blood.Not medical advice.
Betaine HCl (with pepsin)per 650 mg betaine HCl24 pricesAn acid in pill form, often with the enzyme pepsin. Taken to help the stomach digest protein – studies are few.Not medical advice.
Bilberryper 100 mg bilberry extract30 pricesA European relative of the blueberry, rich in blue plant pigments. Taken for the eyes – good studies are few.Not medical advice.
Biotin (vitamin B7)per 1,000 µg biotin189 pricesA B vitamin (B7) from eggs, nuts and seeds. Your body needs it to get energy from food and for hair and skin. High doses can upset some blood tests.Not medical advice.
Bitter melonper 500 mg bitter melon32 pricesA bitter, cucumber-like fruit from Asia. Taken for blood sugar – studies are small and mixed.Not medical advice.
Black cohoshper 40 mg black cohosh extract35 pricesRoot of a North American plant. Taken for hot flashes in menopause – studies are mixed. Rare liver problems have been reported.Not medical advice.
Black seed oilper 1,000 mg black seed oil66 pricesOil from black cumin seeds, a spice in Middle Eastern cooking. Used in folk medicine for centuries – modern studies are mostly small.Not medical advice.
Boronper 3 mg boron21 pricesA trace mineral from fruit, nuts and beans. It plays a part in how the body uses calcium, magnesium and vitamin D – but it isn’t proven to be essential.Not medical advice.
Boswelliaper 500 mg boswellia extract43 pricesResin from the frankincense tree. Taken for joints – some small studies look positive.Not medical advice.
Bovine colostrumper 2 g colostrum64 pricesThe first milk of cows after giving birth, dried. It has a lot of antibodies – taken for the gut and the immune system, studies are small.Not medical advice.
Bromelainper 500 mg bromelain56 pricesEnzymes from the stem of the pineapple plant that split protein. Taken for digestion and joints – studies are mixed.Not medical advice.
Burdock rootper 500 mg burdock root17 pricesRoot of the burdock plant, eaten as a vegetable in Japan. Used in folk medicine for skin and digestion – studies in people are few.Not medical advice.
Butterburper 50 mg butterbur extract3 pricesExtract from the butterbur plant, used in Europe for centuries – studies are small. Buy only “PA-free” – the raw plant can harm the liver.Not medical advice.
Butyrateper 300 mg butyrate10 pricesA fatty acid that gut bacteria make from fiber. The cells lining the gut use it as their main fuel.Not medical advice.
C
Caffeineper 200 mg caffeine24 pricesThe stimulant in coffee and tea, here as tablets, capsules or gum. It blocks the brain’s tiredness signal, so you feel more awake.Not medical advice.
Calciumper 500 mg calcium88 pricesA mineral from dairy, tofu and leafy greens. Your body needs it to build bones and teeth, and for muscles and nerves.Not medical advice.
Calcium alpha-ketoglutarate (Ca-AKG)per 1,000 mg Ca-AKG10 pricesCalcium plus AKG, a substance the body makes itself to get energy from food. Studied for healthy aging – mostly in animals so far.Not medical advice.
Camu camu powderper 3 g camu camu11 pricesA sour berry from the Amazon, dried and powdered. It’s very rich in vitamin C, which your body needs for the immune system and skin.Not medical advice.
Carbohydrate powdersper 50 g carbohydrates16 pricesCarbohydrate powders like maltodextrin or dextrose, mixed into drinks. Carbs are the muscles’ main fuel in hard and long training.Not medical advice.
Cat’s clawper 500 mg cat’s claw25 pricesBark of a woody vine from the Amazon rainforest. Used in folk medicine for joints and the immune system – studies are few.Not medical advice.
Chagaper 1,000 mg chaga39 pricesA black fungus growth on birch trees. Taken for the immune system – studies in people are missing. It has a lot of oxalate, which can strain the kidneys.Not medical advice.
Chamomileper 400 mg chamomile18 pricesDried chamomile flowers – the same as in the tea. Taken to relax and sleep – studies are small.Not medical advice.
Chasteberry (vitex)per 400 mg chasteberry42 pricesFruit of the chaste tree from the Mediterranean. Taken by women for complaints before their period – some studies look positive.Not medical advice.
Chlorellaper 3 g chlorella29 pricesA green freshwater alga, dried and powdered. It adds protein, iron and vitamins – studies on other effects are small.Not medical advice.
Choline (bitartrate)per 250 mg choline30 pricesA nutrient from eggs and meat. Your body needs it for the liver, the brain and the nerves.Not medical advice.
Chondroitinper 1,000 mg chondroitin sulfate8 pricesA building block of cartilage, made from animal cartilage. Taken for joints, often with glucosamine – study results are mixed.Not medical advice.
Chromiumper 200 µg chromium75 pricesA mineral found in tiny amounts in many foods. It helps insulin move sugar from the blood into the cells.Not medical advice.
Cinnamonper 1,000 mg cinnamon47 pricesBark of cinnamon trees – Ceylon or the more common cassia. Studied for blood sugar, with mixed results. Lots of cassia can strain the liver.Not medical advice.
Cissus quadrangularisper 500 mg cissus extract8 pricesA climbing plant from Asia and Africa. Used in Indian medicine for bones and joints – studies in people are few.Not medical advice.
Citicoline (CDP-choline)per 250 mg citicoline17 pricesA form of choline the body also makes itself. The brain uses it for its cell walls and messengers – taken for focus and memory.Not medical advice.
Citrullineper 6 g citrulline65 pricesAn amino acid first found in watermelon. Your body turns it into arginine, which helps blood vessels widen – often taken before a workout.Not medical advice.
Citrus bergamotper 500 mg bergamot extract14 pricesExtract from bergamot, a citrus fruit from southern Italy. Taken for blood fats like cholesterol – studies are small.Not medical advice.
Citrus bioflavonoidsper 500 mg citrus bioflavonoids33 pricesPlant compounds from citrus peel, like hesperidin. Taken for veins and blood vessels – studies are small.Not medical advice.
CLAper 1,000 mg CLA39 pricesA group of fats from beef and dairy. Sold for losing body fat – in studies the effect in people is very small.Not medical advice.
Cocoa flavanolsper 500 mg cocoa flavanolsAdd your ownPlant compounds from cocoa beans, as extract. Studied for blood flow and blood vessels – some studies look positive.Not medical advice.
Coenzyme Q10per 100 mg CoQ10376 pricesA substance the body makes itself, found in every cell. Cells need it to make energy – levels fall with age and with some cholesterol medicines.Not medical advice.
Collagen peptidesper 10 g collagen197 pricesProtein from animal skin, bones or fish skin, cut into small pieces. Collagen holds skin, tendons and bones together – your body digests it and can use the pieces to make its own.Not medical advice.
Copperper 2 mg copper22 pricesA mineral from shellfish, nuts and organ meats. Your body needs it for blood, nerves and the immune system. Lots of zinc lowers copper.Not medical advice.
Cordycepsper 1,000 mg cordyceps52 pricesA fungus, today mostly grown in labs. Taken for energy and endurance – studies are small and mixed.Not medical advice.
Cranberryper 500 mg cranberry56 pricesCranberries as powder or extract. Taken for the bladder – some studies look positive.Not medical advice.
Creatineper 5 g creatine monohydrate388 pricesA substance from meat and fish that the body also makes itself. Muscles use it for quick energy in short, hard efforts like sprints or lifting.Not medical advice.
D
D-mannoseper 2 g D-mannose35 pricesA simple sugar related to glucose. Taken for the bladder and urinary tract – studies are mixed.Not medical advice.
D-riboseper 5 g D-ribose36 pricesA sugar your body uses to build ATP, the energy molecule in every cell. Whether extra ribose helps healthy people is unclear.Not medical advice.
Dandelion rootper 500 mg dandelion37 pricesRoot of the common dandelion. Used in folk medicine for digestion and as a mild “water pill” – studies are few.Not medical advice.
Devil’s clawper 500 mg devil’s claw10 pricesRoot of a plant from southern Africa, named after its hooked fruit. Taken for the back and joints – some studies look positive.Not medical advice.
Digestive enzymesper serving245 pricesHelpers (enzymes) that split protein, fat and carbs, like the ones your body makes itself. Taken to make food easier to digest.Not medical advice.
Dong quaiper 500 mg dong quai14 pricesRoot of a Chinese plant related to celery. Used in Chinese medicine for women’s health – good studies are missing.Not medical advice.
E
Echinaceaper 400 mg echinacea45 pricesConeflower from North America – leaves, flowers or root. Taken for the immune system – studies are mixed.Not medical advice.
Eggshell membraneper 500 mg eggshell membrane7 pricesThe thin skin inside eggshells, dried and ground. It naturally contains collagen and other cartilage building blocks – taken for joints, studies are small.Not medical advice.
Elderberryper 500 mg elderberry extract36 pricesBerries of the black elder, as syrup, gummies or extract. Taken for the immune system – studies are small.Not medical advice.
Electrolytesper 500 mg sodium271 pricesSalts like sodium, potassium and magnesium as powder, tablets or drops. They replace what you lose in sweat. We compare them by sodium.Not medical advice.
Eleuthero (Siberian ginseng)per 500 mg eleuthero19 pricesRoot of a shrub from Siberia – not a real ginseng. Taken for energy and stress – studies are mixed.Not medical advice.
Energy & sports barsper 40 g carbohydrates11 pricesBars made mostly of carbs, often from oats, fruit or rice. Easy fuel for the muscles before or during long training.Not medical advice.
Energy chews & sports confectioneryper 25 g carbohydrates2 pricesGummies and blocks with sugars, made for sport. Like gels, they give quick fuel during long training.Not medical advice.
Energy gelsper 25 g carbohydrates5 pricesSmall packs of thick, sugary gel. They give quick fuel during long runs or rides, when the body’s carb stores run low.Not medical advice.
Ergothioneineper 10 mg ergothioneine9 pricesAn amino acid found mostly in mushrooms. The body stores it in many organs – studied as an antioxidant, research is still early.Not medical advice.
Essential amino acids (EAA)per 10 g essential amino acids64 pricesThe nine amino acids your body can’t make itself, so they must come from food. Your body needs all nine to build new protein, for example in muscle.Not medical advice.
Eye formulas (AREDS 2 type)per serving55 pricesVitamins C and E, zinc, copper, lutein and zeaxanthin, mixed as in a large US eye study (AREDS 2). The center of the eye stores lutein and zeaxanthin as a filter for blue light.Not medical advice.
F
Fenugreekper 500 mg fenugreek39 pricesSeeds of a plant also used as a spice. Taken for blood sugar and by nursing mothers – studies are small.Not medical advice.
Feverfewper 100 mg feverfew15 pricesLeaves of a daisy-like plant, used in European folk medicine for centuries – studies are mixed.Not medical advice.
Fisetinper 100 mg fisetin22 pricesA plant pigment from strawberries. Studied for healthy aging – almost only in animals so far.Not medical advice.
Flaxseed oilper 1,000 mg alpha-linolenic acid (ALA)64 pricesOil from flax seeds with the plant omega-3 fat ALA. Your body turns only a small part of it into EPA and DHA, the omega-3s in fish oil.Not medical advice.
Folate (folic acid, B9)per 400 µg folate131 pricesA B vitamin (B9) from leafy greens and beans – folic acid in pills. Your body needs it to make new cells and blood, especially in early pregnancy.Not medical advice.
Fruit & vegetable capsulesper serving17 pricesDried fruit and vegetable powders in capsules. They add a few vitamins and plant pigments – much less than a portion of fresh fruit or vegetables.Not medical advice.
G
GABAper 500 mg GABA61 pricesA messenger in the brain that calms nerve signals. Whether GABA from a pill reaches the brain is still unclear.Not medical advice.
Garlicper 600 mg garlic89 pricesGarlic as powder, oil or aged extract. Taken for the heart and blood vessels – results are mixed.Not medical advice.
Gingerper 500 mg ginger43 pricesGinger root, dried or as extract. Taken for the stomach, for example when traveling – here the studies look fairly good.Not medical advice.
Ginkgo bilobaper 120 mg ginkgo extract78 pricesExtract from the leaves of the ginkgo tree. Taken for memory and blood flow – large studies found little effect.Not medical advice.
GLA oilsper 100 mg GLA58 pricesOils from evening primrose, borage or blackcurrant seeds with the omega-6 fat GLA. Taken mostly for the skin – studies are mixed.Not medical advice.
Glucosamineper 1,500 mg glucosamine220 pricesA building block of cartilage, mostly made from shellfish shells. Taken for joints – study results are mixed.Not medical advice.
Glutathioneper 250 mg glutathione92 pricesThree amino acids joined together – the body’s own main protection against cell damage. How much from a pill reaches the cells is unclear.Not medical advice.
Glycerolper 20 g glycerol1 priceA sweet, syrupy liquid, also called glycerin. Athletes take it to help the body hold on to more water before long events in the heat.Not medical advice.
Glycineper 3 g glycine54 pricesThe smallest amino acid – about a third of collagen is glycine. Your body uses it to build collagen and as a calming messenger in the nerves.Not medical advice.
Goji berry powderper 5 g goji12 pricesDried goji berries, powdered. Rich in zeaxanthin, a yellow pigment the eye stores – studies on other effects are small.Not medical advice.
Goldensealper 500 mg goldenseal15 pricesRoot of a North American plant. Used for the airways and digestion – studies are few, and it interacts with many medicines.Not medical advice.
Gotu kolaper 500 mg gotu kola18 pricesA small plant from Asia. Used in traditional medicine for skin and memory – studies are small.Not medical advice.
Grape seed extract (OPCs)per 100 mg grape seed extract34 pricesExtract from grape seeds, rich in plant pigments (OPCs). Taken for blood vessels – studies are small.Not medical advice.
Green tea extractper 500 mg green tea extract32 pricesConcentrated green tea, often with caffeine. Studied for weight and the heart – effects are small. High doses on an empty stomach can harm the liver.Not medical advice.
Green-lipped musselper 500 mg green-lipped mussel5 pricesPowder or oil from a mussel that lives only in New Zealand, with omega-3 fats. Taken for joints – studies are mixed.Not medical advice.
Greens powdersper serving209 pricesDried vegetables, grasses and algae as powder, often with added vitamins. They add some nutrients from greens – but they don’t replace eating vegetables.Not medical advice.
Guduchi (giloy)per 500 mg guduchi4 pricesA climbing plant from India, also called giloy. Used in Indian medicine for the immune system – studies are few. Liver problems have been reported.Not medical advice.
Guggulper 500 mg guggul extract4 pricesResin from a small tree in India. Used in Indian medicine for blood fats – studies are mixed.Not medical advice.
Gymnema sylvestreper 400 mg gymnema extract28 pricesLeaves of a climbing plant from India – chewing them makes sweets taste less sweet. Taken for blood sugar – studies are small.Not medical advice.
H
Hair, skin & nails formulasper serving161 pricesMixes built around biotin, often with collagen and other vitamins. Hair, skin and nails need these nutrients to grow – extra helps only if you lack them.Not medical advice.
Hawthornper 500 mg hawthorn45 pricesLeaves, flowers or berries of the hawthorn shrub. Taken for the heart and blood flow – studies are mixed.Not medical advice.
Hibiscusper 500 mg hibiscus6 pricesDried hibiscus flowers – the same as in the tea. Taken for the heart and blood vessels – studies are small.Not medical advice.
HMBper 3 g HMB19 pricesA substance the body makes from the amino acid leucine. Studied for slowing muscle breakdown – mostly in older or untrained people.Not medical advice.
Holy basil (tulsi)per 500 mg holy basil32 pricesA basil plant from India, also called tulsi. Used in Indian medicine for stress – studies are small.Not medical advice.
Hopsper 300 mg hops extract8 pricesFlowers of the hop plant – the same as in beer. Taken to relax and sleep, often with valerian – studies are small.Not medical advice.
Horse chestnut seed extractper 300 mg horse chestnut extract16 pricesExtract from horse chestnut seeds. Taken for the veins in the legs – studies look fairly good. Never eat the raw seeds.Not medical advice.
Hyaluronic acidper 100 mg hyaluronic acid42 pricesA substance in skin and joints that holds water. Taken for skin moisture and joints – studies are small.Not medical advice.
I
Inositolper 2 g inositol99 pricesA sugar-like substance from fruit, beans and grains. Cells use it to pass on signals, for example from insulin – studied mostly for women’s hormones.Not medical advice.
Iodineper 150 µg iodine52 pricesA mineral from seafood, dairy and iodized salt. Your thyroid needs it to make the hormones that control how your body uses energy.Not medical advice.
Ironper 18 mg iron108 pricesA mineral from meat, beans and leafy greens. Your body needs it to make red blood cells, which carry oxygen. Take it only if you need it – too much is harmful.Not medical advice.
J
Jiaogulanper 500 mg jiaogulan4 pricesA climbing plant from China, related to the cucumber. Used in Chinese medicine for energy and blood fats – studies in people are few.Not medical advice.
K
Ketone supplementsper 10 g ketones (BHB)17 pricesThe fuel your body makes from fat when you eat almost no carbs, here as salts or drinks. They give cells an extra energy source – studies in sport are mixed.Not medical advice.
Kudzuper 500 mg kudzu root6 pricesRoot of a fast-growing vine from East Asia. Used in Chinese medicine, today taken for menopause – studies are small.Not medical advice.
L
L-arginineper 3 g arginine110 pricesAn amino acid from meat, nuts and seeds. Your body uses it to make nitric oxide, a gas that helps blood vessels widen.Not medical advice.
L-carnitineper 1,000 mg carnitine (as labeled)129 pricesA substance from red meat that the body also makes itself. It carries fat into the cells’ power plants – extra carnitine isn’t shown to burn more fat.Not medical advice.
L-carnosineper 500 mg carnosine28 pricesTwo amino acids joined together, found mostly in muscle. It buffers the acid that builds up in muscles during hard exercise.Not medical advice.
L-glutamineper 5 g glutamine134 pricesThe most common amino acid in the body. Cells in the gut and the immune system use it as fuel – most people make enough themselves.Not medical advice.
L-leucineper 3 g leucine20 pricesOne of the nine essential amino acids, found in all protein foods. It’s the signal that tells muscles to start building new protein.Not medical advice.
L-lysineper 1,000 mg lysine78 pricesAn essential amino acid from meat, fish, dairy and beans. Your body needs it to build protein and to make collagen and carnitine.Not medical advice.
L-methionineper 500 mg methionine16 pricesAn essential amino acid with sulfur in it, from meat, fish, eggs and nuts. The body uses it to build proteins and to make other sulfur compounds it needs.Not medical advice.
L-ornithineper 1,000 mg ornithine19 pricesAn amino acid the body makes itself, not used to build protein. It helps the liver get rid of ammonia, a waste product from protein.Not medical advice.
L-prolineper 500 mg proline16 pricesAn amino acid the body makes itself and also gets from meat, eggs and dairy. It is one of the main building blocks of collagen, the protein in skin, tendons and bones.Not medical advice.
L-serineper 500 mg serine18 pricesAn amino acid the body makes itself and also gets from soy, eggs and meat. It helps build proteins and the fats that make up cell walls, especially in the brain.Not medical advice.
L-theanineper 200 mg L-theanine83 pricesAn amino acid from tea leaves. Taken to feel calm but alert – studies are small, but look positive.Not medical advice.
L-threonineper 500 mg threonine7 pricesAn essential amino acid – the body can’t make it, so it comes from food like meat, dairy, eggs and lentils. The body uses it to build proteins, including collagen.Not medical advice.
L-tryptophanper 500 mg tryptophan35 pricesAn essential amino acid from milk, poultry and oats. Your body uses it to make serotonin and melatonin, which play a part in mood and sleep.Not medical advice.
L-tyrosineper 500 mg tyrosine61 pricesAn amino acid from protein foods. Your body uses it to make dopamine and adrenaline (brain messengers) and thyroid hormones.Not medical advice.
Lactaseper serving15 pricesThe enzyme that splits milk sugar (lactose). Taken with dairy, it helps people who don’t make enough of it themselves.Not medical advice.
Lactoferrinper 200 mg lactoferrin11 pricesA protein from milk, especially the first milk after birth. It binds iron and is part of the body’s own defenses – studies in adults are small.Not medical advice.
Lavender oil capsulesper 80 mg lavender oil6 pricesLavender oil in softgels. Taken to relax – some studies look positive.Not medical advice.
Lemon balmper 500 mg lemon balm26 pricesLeaves of a mint plant with a lemon smell. Taken to relax and sleep – studies are small.Not medical advice.
Licorice rootper 400 mg licorice28 pricesLicorice root, taken for the stomach. Normal licorice can raise blood pressure – DGL has that part removed.Not medical advice.
Lion’s maneper 1,000 mg lion’s mane92 pricesAn edible mushroom with long, hair-like spines. Taken for focus and memory – studies in people are small.Not medical advice.
Liquid chlorophyll (chlorophyllin)per 100 mg chlorophyllin30 pricesA form of chlorophyll, the green in plants, that dissolves in water. Taken against body odor and for the skin – studies are few.Not medical advice.
Lutein & zeaxanthinper 10 mg lutein79 pricesYellow plant pigments, mostly from marigold flowers. The center of the eye stores them as a natural filter for blue light.Not medical advice.
Lycopeneper 10 mg lycopene24 pricesThe red pigment in tomatoes. Studied as an antioxidant and for the heart and prostate – results are mixed.Not medical advice.
M
Macaper 3 g maca86 pricesA root from the Andes in Peru, dried and powdered. Taken for energy and mood – studies are small.Not medical advice.
Magnesiumper 200 mg magnesium627 pricesA mineral from nuts, seeds, whole grains and greens. Your body needs it for muscles, nerves, bones and to make energy.Not medical advice.
Magnolia barkper 200 mg magnolia bark extract4 pricesBark of a magnolia tree from China. Taken to relax and sleep – studies are small.Not medical advice.
Maitakeper 1,000 mg maitake17 pricesAn edible mushroom that grows in clusters, also called hen of the woods. Taken for the immune system – studies are few.Not medical advice.
Manganeseper 5 mg manganese18 pricesA mineral from nuts, whole grains and tea. Your body needs small amounts for bones, connective tissue and to get energy from food.Not medical advice.
Marshmallow rootper 500 mg marshmallow root14 pricesRoot of the marshmallow plant – the candy was named after it. It turns slimy in water and coats the throat and stomach.Not medical advice.
Mass gainersper 30 g protein28 pricesPowders with lots of carbs plus protein – many calories per shake. They make it easier to eat more than you burn, which you need to gain weight.Not medical advice.
MCT oil & powderper 15 g MCTs76 pricesFats from coconut or palm oil that are digested faster than other fats. The liver quickly turns them into energy and ketones.Not medical advice.
Meal replacement shakesper 400 kcal calories21 pricesA meal in a shake or bar: protein, carbs, fat, vitamins and minerals. It gives your body the basics of a meal when there’s no time to cook.Not medical advice.
US onlyMelatoninper 1 mg melatonin326 pricesA hormone your body makes in the evening to signal it’s time to sleep. A supplement in the US, a medicine in many other countries.Not medical advice.
Milk thistleper 300 mg milk thistle extract102 pricesSeeds of the milk thistle plant. Taken for the liver – studies are mixed.Not medical advice.
Molybdenumper 100 µg molybdenum11 pricesA mineral from beans, grains and nuts. Your body needs tiny amounts to break down some amino acids and waste products.Not medical advice.
Moringaper 3 g moringa47 pricesDried leaves of the moringa tree. They add vitamins, minerals and protein – studies on other effects are small.Not medical advice.
MSMper 1,000 mg MSM69 pricesA sulfur compound found in small amounts in food. Taken for joints – studies are small.Not medical advice.
Mullein leafper 500 mg mullein22 pricesLeaves of a tall herb with yellow flowers. Used in folk medicine for the throat and airways – studies are few.Not medical advice.
Multivitaminsper serving1,075 pricesMany vitamins and minerals in one tablet, capsule or gummy. They cover the basics in case your food is missing a few nutrients.Not medical advice.
Mushroom blends & mushroom coffeeper serving136 pricesSeveral mushrooms mixed, as powder or in coffee. What it does depends on which mushrooms and how much – often only small amounts.Not medical advice.
N
NAC (N-acetyl cysteine)per 600 mg NAC104 pricesA form of the amino acid cysteine. Your body uses it to make glutathione, its own main protection against cell damage.Not medical advice.
Nattokinaseper 100 mg nattokinase45 pricesAn enzyme from natto, a Japanese fermented soybean dish. Taken for blood flow – studies are small. Ask a doctor first if you take blood thinners.Not medical advice.
Neemper 500 mg neem11 pricesLeaves or bark of the neem tree from India. Used in Indian medicine for skin and teeth – studies in people are few.Not medical advice.
Nicotinamide riboside (NR)per 300 mg NR5 pricesA form of vitamin B3. Like NMN, your body turns it into NAD+, which every cell needs to make energy – studies in people are small.Not medical advice.
US onlyNMNper 500 mg NMN96 pricesA substance your body turns into NAD+, which every cell needs to make energy. NAD+ falls with age – whether NMN helps people is still being studied.Not medical advice.
Noniper 500 mg noni10 pricesA fruit from the South Pacific, as juice or capsules. Sold for many things – good studies are missing, and liver problems have been reported.Not medical advice.
O
Olive leaf extractper 500 mg olive leaf extract46 pricesExtract from olive leaves. Taken for the heart and the immune system – studies are small.Not medical advice.
Omega 3-6-9 blendsper 1,000 mg EPA + DHA21 pricesBlends of fish and plant oils with omega-3, -6 and -9 fats. Most people get plenty of omega-6 and -9 from food – omega-3 is the part often missing.Not medical advice.
Omega-3per 1,000 mg EPA + DHA640 pricesThe omega-3 fats EPA and DHA from fish, krill or algae oil. Your body uses them for the heart, brain and eyes. We compare by EPA + DHA, not by oil.Not medical advice.
Oregano oilper 150 mg oregano oil37 pricesOil from oregano leaves. Taken for the gut and the immune system – tested mostly in the lab, rarely in people.Not medical advice.
Other fiber supplementsper 5 g fiber117 pricesFibers like inulin, acacia or glucomannan. Fiber helps keep digestion regular and feeds the good bacteria in your gut.Not medical advice.
P
Passionflowerper 400 mg passionflower22 pricesLeaves and flowers of a climbing plant. Taken to relax and sleep – studies are small.Not medical advice.
Pau d’arcoper 500 mg pau d’arco11 pricesInner bark of a South American tree, also called lapacho. Used in South American folk medicine – studies in people are missing.Not medical advice.
US onlyPelargonium sidoides (umckaloabo)per 20 mg pelargonium extractAdd your ownRoot of a South African geranium. Taken for the throat and airways – some studies look positive.Not medical advice.
Peppermint oil capsulesper 200 mg peppermint oil6 pricesPeppermint oil in capsules that open in the gut. Taken for the gut – studies look fairly good.Not medical advice.
Phenylalanineper 500 mg phenylalanine26 pricesAn essential amino acid from meat, fish, dairy and soy. The body turns it into tyrosine, another amino acid. People with phenylketonuria (PKU) must avoid it.Not medical advice.
Phosphatidylserineper 100 mg phosphatidylserine41 pricesA fat-like building block of brain cells, made from soy or sunflower. Taken for memory and stress – studies are small.Not medical advice.
Pine bark extractper 100 mg pine bark extract43 pricesExtract from the bark of a French pine tree, e.g. Pycnogenol®. Taken for blood flow and skin – studies are small.Not medical advice.
Piperine (black pepper extract)per 10 mg piperine8 pricesThe sharp-tasting part of black pepper. Added to other supplements like turmeric, because it helps the body take them up.Not medical advice.
Plant sterols & stanolsper 1 g plant sterols33 pricesPlant substances similar to cholesterol, from vegetable oils. They stop some cholesterol from being taken up in the gut – well studied.Not medical advice.
Pomegranate extractper 500 mg pomegranate extract34 pricesExtract from pomegranate fruit, peel or seeds, rich in plant pigments. Studied for the heart and blood vessels – studies are small.Not medical advice.
Potassiumper 100 mg potassium84 pricesA mineral and electrolyte from fruit, vegetables and beans. Your body needs it for muscles, nerves and normal blood pressure. US pills hold only up to 99 mg.Not medical advice.
PQQper 20 mg PQQ30 pricesA small compound found in kiwi, parsley and natto. Studied for cell energy and the brain – studies in people are few.Not medical advice.
Pre-workoutper serving233 pricesA mix taken before training, usually caffeine to feel awake plus citrulline or beta-alanine. What it does depends on the mix – check the caffeine.Not medical advice.
Probioticsper 10 billion CFU live cultures465 pricesLive bacteria or yeasts, counted in billions (CFU). They add to the bacteria in your gut – each kind does something different, and many aren’t well studied.Not medical advice.
Propolisper 500 mg propolis48 pricesA resin bees collect from tree buds to seal their hive. Taken for the immune system and the throat – studies are small.Not medical advice.
Protein barsper 20 g protein92 pricesSnack bars with extra protein, usually from milk or soy. Your body uses protein to build and repair muscle and other tissue.Not medical advice.
Protein powderper 30 g protein803 pricesProtein from milk, plants, eggs or beef as a powder for shakes. Your body uses protein to build and repair muscle, skin, bones and much more.Not medical advice.
Protein shakes (ready to drink)per 30 g protein16 pricesReady-to-drink protein shakes in bottles or cartons. Your body uses protein to build and repair muscle and other tissue.Not medical advice.
Protein snacksper 20 g protein31 pricesChips, cookies, puddings and spreads with extra protein. Your body uses protein to build and repair muscle and other tissue.Not medical advice.
Psyllium huskper 5 g fiber32 pricesHusks of a seed that swell into a gel in water. This soft fiber helps keep digestion regular. Drink plenty of water with it.Not medical advice.
Pterostilbeneper 50 mg pterostilbene10 pricesA relative of resveratrol from blueberries. Studied for healthy aging – studies in people are few.Not medical advice.
Pumpkin seed oilper 1,000 mg pumpkin seed oil17 pricesOil pressed from pumpkin seeds. Taken mostly by men for the bladder and prostate – studies are small.Not medical advice.
Pygeumper 100 mg pygeum6 pricesBark of the African cherry tree. Taken by men for the prostate and bladder – studies are mixed.Not medical advice.
Q
Quercetinper 500 mg quercetin63 pricesA plant pigment from onions, apples and capers. Studied for the immune system – studies in people are small.Not medical advice.
R
Red cloverper 500 mg red clover17 pricesRed clover flowers, rich in plant estrogens (isoflavones). Taken for menopause symptoms – studies are mixed.Not medical advice.
Reishiper 1,000 mg reishi44 pricesA hard, bitter mushroom that grows on trees. Used in Chinese medicine for the immune system and sleep – good studies are few.Not medical advice.
Resveratrolper 250 mg trans-resveratrol64 pricesA substance from red grapes – pills are mostly made from a plant called knotweed. Studied for healthy aging and blood vessels – results in people are mixed.Not medical advice.
Rhodiola roseaper 300 mg rhodiola extract57 pricesRoot of a plant from cold regions, also called golden root. Taken for tiredness and stress – studies are small and mixed.Not medical advice.
Royal jellyper 1,000 mg royal jelly11 pricesA substance bees make to feed their queen. Taken for energy and well-being – studies in people are few. Can cause allergies.Not medical advice.
S
Saffron extractper 30 mg saffron extract28 pricesExtract from saffron, the spice from crocus flowers. Taken for mood – several small studies look positive.Not medical advice.
Sageper 500 mg sage9 pricesLeaves of the kitchen herb. Taken for hot flashes and memory – studies are small.Not medical advice.
SAMeper 400 mg SAMe46 pricesA substance the body makes from the amino acid methionine and uses in many processes. Studied for mood and joints.Not medical advice.
Saw palmettoper 320 mg saw palmetto71 pricesBerries of a small palm from the southeastern US. Taken by men for the prostate – large studies found little effect.Not medical advice.
Schisandraper 500 mg schisandra19 pricesBerries of a climbing plant from China, also called five-flavor fruit. Used in Chinese medicine for energy and the liver – studies are few.Not medical advice.
Sea buckthorn oilper 1,000 mg sea buckthorn oil24 pricesOil from the orange berries or seeds of the sea buckthorn shrub. Taken for skin and dry eyes – studies are small.Not medical advice.
Sea mossper 1,000 mg sea moss20 pricesA red seaweed, as gel, capsules or powder. It adds minerals, especially iodine – the amount varies a lot, so too much is possible.Not medical advice.
Seleniumper 100 µg selenium78 pricesA mineral from Brazil nuts, fish and eggs. Your body needs it for the thyroid, the immune system and to protect cells from damage.Not medical advice.
Serrapeptaseper serving47 pricesAn enzyme first found in bacteria living in silkworms. Taken for the airways and joints – good studies in people are missing.Not medical advice.
Shatavariper 500 mg shatavari17 pricesRoot of an asparagus plant from India. Used in Indian medicine for women’s health – studies in people are few.Not medical advice.
Shiitakeper 1,000 mg shiitake24 pricesThe edible shiitake mushroom, as powder or extract. Taken for the immune system – studies are small.Not medical advice.
Shilajitper 500 mg shilajit45 pricesA sticky, tar-like substance from rocks in the Himalayas. Used in Indian medicine for energy – studies are small. Buy only lab-tested products.Not medical advice.
Silicaper 10 mg silica3 pricesSilicon bound to oxygen – the same compound as in quartz and sand. In supplements it mostly comes from horsetail or bamboo. Bones, skin and hair contain silicon; its role is still being studied.Not medical advice.
Slippery elmper 400 mg slippery elm19 pricesInner bark of the slippery elm tree from North America. It turns slimy in water and coats the throat and stomach.Not medical advice.
Sodium bicarbonateper 20 g sodium bicarbonate3 pricesBaking soda – the same as in the kitchen. It buffers acid in the blood during hard efforts of 1–10 minutes, but can upset the stomach.Not medical advice.
Soy isoflavonesper 50 mg soy isoflavones12 pricesPlant estrogens from soybeans. Taken for menopause symptoms and bones – studies are mixed.Not medical advice.
Spermidineper 1 mg spermidine15 pricesA substance from wheat germ, soy and aged cheese. Studied for how cells clean up worn-out parts and for healthy aging – mostly in animals.Not medical advice.
Spirulinaper 3 g spirulina42 pricesA blue-green alga, dried and powdered. It adds protein, iron and plant pigments – studies on other effects are small.Not medical advice.
Sports drinksper 30 g carbohydratesAdd your ownDrinks or powders with sugars and salts. They replace the water, salt and fuel you lose in long or hot training.Not medical advice.
US onlySt. John’s wortper 300 mg St. John’s wort extract48 pricesA plant with yellow flowers. Taken for mood – studies look fairly good, but it weakens many medicines, including the birth control pill.Not medical advice.
Stinging nettleper 500 mg nettle37 pricesLeaves or root of the stinging nettle. The leaves are taken for the nose and joints, the root by men for the prostate – studies are small.Not medical advice.
Strontiumper 340 mg strontium13 pricesA mineral very similar to calcium, which the body builds into bone. Taken for bones – studies on supplements are few.Not medical advice.
Sulforaphane (broccoli sprout extract)per 10 mg sulforaphane8 pricesA substance from broccoli sprouts. Studied for the cells’ own protection against damage – studies in people are small.Not medical advice.
T
Tart cherryper serving52 pricesSour cherries as juice concentrate or capsules. Taken for muscle recovery and sleep – some small studies look positive.Not medical advice.
Taurineper 1 g taurine78 pricesA substance from meat and fish, also added to energy drinks. The heart, muscles and eyes hold a lot of it – it helps cells balance water and salts.Not medical advice.
Trace mineral dropsper serving75 pricesLiquid drops with many minerals in small amounts, often from salt lake water. They add a little of each mineral to your drinks.Not medical advice.
Tremellaper 500 mg tremella11 pricesA white, jelly-like mushroom, also called snow fungus. Taken for skin moisture – studies in people are few.Not medical advice.
Triphalaper 1,000 mg triphala18 pricesA mix of three dried fruits from India. Used in Indian medicine for digestion – studies are small.Not medical advice.
TUDCAper 250 mg TUDCA23 pricesA bile acid – bile helps you digest fat. Studied for the liver – mostly in sick people or animals.Not medical advice.
Turkey tailper 1,000 mg turkey tail36 pricesA striped mushroom that grows on dead wood. Used in Asia for the immune system – studies in healthy people are few.Not medical advice.
Turmeric & curcuminper 500 mg curcuminoids96 pricesThe yellow spice and its main compound, curcumin. Taken for joints – the body takes up little curcumin, so many products add black pepper.Not medical advice.
U
Undenatured type II collagen (UC-II)per 40 mg UC-II4 pricesCollagen from chicken cartilage that hasn’t been broken down, taken in tiny doses. Taken for joints – studies are small.Not medical advice.
Uridine monophosphateper 250 mg uridine monophosphate4 pricesA building block the body uses for, among other things, the walls of brain cells. Studied for memory and mood – studies in people are few.Not medical advice.
Urolithin Aper 500 mg urolithin A3 pricesA substance gut bacteria make from pomegranate and berries – pills are made in a lab. Studied for how cells recycle worn-out parts – studies in people are small.Not medical advice.
V
Valerianper 500 mg valerian54 pricesRoot of the valerian plant. Taken to sleep better – studies are mixed.Not medical advice.
Vanadiumper 100 µg vanadium4 pricesA trace mineral, mostly sold as vanadyl sulfate. It isn’t known to be essential; studied for blood sugar, with little good evidence.Not medical advice.
Vitamin Aper 1,000 µg vitamin A73 pricesA vitamin from liver, dairy and orange vegetables (as beta-carotene). Your body needs it to see in dim light, for the skin and the immune system.Not medical advice.
Vitamin B complexper serving293 pricesAll eight B vitamins in one product. Your body needs them to get energy from food and for the nerves and blood.Not medical advice.
Vitamin B1 (thiamine)per 100 mg vitamin B167 pricesA B vitamin, also called thiamine, from whole grains, pork and beans. Your body needs it to turn carbs into energy and for the nerves and heart.Not medical advice.
Vitamin B12per 1,000 µg vitamin B12245 pricesA B vitamin found almost only in animal foods, so vegans need it from pills or fortified food. Your body needs it for blood and nerves.Not medical advice.
Vitamin B2 (riboflavin)per 100 mg vitamin B247 pricesA B vitamin, also called riboflavin, from milk, eggs and meat. Your body needs it to get energy from food. It turns urine bright yellow – harmless.Not medical advice.
Vitamin B3 (niacin)per 25 mg vitamin B3117 pricesA B vitamin, also called niacin, from meat, fish and grains. Your body needs it to get energy from food. Niacin (not niacinamide) can cause a hot, red flush.Not medical advice.
Vitamin B5 (pantothenic acid)per 500 mg vitamin B536 pricesA B vitamin found in almost all foods, so a shortage is rare. Your body needs it to get energy from food and to make some hormones.Not medical advice.
Vitamin B6per 10 mg vitamin B680 pricesA B vitamin from fish, poultry, potatoes and bananas. Your body needs it to use protein and for the nerves. Too much for a long time can harm the nerves.Not medical advice.
Vitamin Cper 500 mg vitamin C447 pricesA vitamin from fruit and vegetables, also called ascorbic acid. Your body needs it for the immune system, for collagen in skin and gums, and to take up iron.Not medical advice.
Vitamin Dper 25 µg vitamin D (1,000 IU)531 pricesThe “sunshine vitamin” – the skin makes it in sunlight. Your body needs it to take up calcium for bones and teeth, and for muscles and the immune system.Not medical advice.
Vitamin D3 + K2per 25 µg vitamin D3 (1,000 IU)187 pricesVitamin D3 and K2 in one product. Vitamin D helps your body take up calcium, vitamin K2 helps build it into bone.Not medical advice.
Vitamin Eper 100 mg vitamin E134 pricesA vitamin from nuts, seeds and plant oils. It protects the fats in your cells from damage.Not medical advice.
Vitamin K (K1 & K2)per 100 µg vitamin K113 pricesK1 comes from green vegetables, K2 from fermented foods. Your body needs it for blood clotting and bones. Ask a doctor first if you take blood thinners.Not medical advice.
W
Wheatgrass & barley grassper 3 g grass powder22 pricesYoung wheat or barley leaves, dried and powdered. They add vitamins, minerals and fiber, like other greens – studies are few.Not medical advice.
White mulberry leafper 500 mg white mulberry leaf4 pricesLeaves of the white mulberry tree – what silkworms eat. Taken for blood sugar after meals – studies are small.Not medical advice.
White willow barkper 400 mg willow bark extract12 pricesBark of the white willow tree, which contains salicin. Taken for the back and joints – some studies look positive.Not medical advice.
Y
Yeast beta-glucanper 250 mg beta-glucan15 pricesA fiber from the cell walls of baker’s yeast. Taken for the immune system – some studies look positive.Not medical advice.
Z
Zincper 10 mg zinc202 pricesA mineral from meat, shellfish and seeds. Your body needs it for the immune system, skin and hair.Not medical advice.
#
5-HTPper 100 mg 5-HTP61 pricesA substance made from the seeds of an African plant. Your body turns it into serotonin, a brain messenger linked to mood and sleep.Not medical advice.
Some products we leave out on purpose, like SARMs and fat burners. What we don’t list and why