Creatine & sports supplements
Betaine (TMG)
A 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.
42 products from US online stores, sorted by what 2.5 g of betaine costs – not by the price per pack.
8¢Lowest cost
per 2.5 g betaine
- Prices checked Nov 1, 2026, US
- No paid placements
What does 2.5 g mean?
- betaine per serving in most of the products we checked
- 0.5–1.5 gbetaine per serving in most of the products we checked
- 2.5 g is a fixed amount to compare by: half of the 42 products we checked have up to 1 g per serving, the other half more.
- There’s no official daily amount for betaine.
We compare by 2.5 g only so products line up – it’s not a recommendation. Not medical advice.
Where products miss quality points
How the 42 products score
- Very good 90+: 0
- Good 75+: 42
- Fair 60+: 0
- Low under 60: 0
- have no seal from an independent testing program
- 100%have no seal from an independent testing program10 of 30 testing points for GMP, 15 for the 14 whose label says “third-party tested”
The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.
We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works
Pack size
Compare packs of a similar size.
All sizes in one list can affect the results – big packs usually cost less per 2.5 g. Pick a size above to compare packs that are alike.
42 products · cheapest per 2.5 g betaine first
- Rank 1
Nutricost
Betaine Anhydrous, Unflavored
Powder
85Good qualityMade in USA8¢per 2.5 g
Lowest
- Pack
- $15.95500 g (1.1 lb)333 servings
- Betaine per serving
- 1.5 gin 1.5 g
- Pack lasts
- 200 daysif you take 2.5 g a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 2
BulkSupplements
Betaine Anhydrous (TMG) Powder
Powder
80Good qualityCountry not stated8¢per 2.5 g
Lowest
- Pack
- $31.97667 servings
- Betaine per serving
- 1.5 g
- Pack lasts
- 400 daysif you take 2.5 g a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 3
Nutricost
Betaine Anhydrous (TMG) Powder
Powder
85Good qualityMade in USA9¢per 2.5 g
13% more
- Pack
- $17.97499 g (1.1 lb)333 servings
- Betaine per serving
- 1.5 gin 1.5 g
- Pack lasts
- 199 daysif you take 2.5 g a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 4
Vitamatic
Betaine Anhydrous (TMG) Powder
Powder
80Good qualityCountry not stated$0.10per 2.5 g
26% more
- Pack
- $9.99249 g (8.8 oz)166 servings
- Betaine per serving
- 1.5 gin 1.5 g
- Pack lasts
- 99 daysif you take 2.5 g a day
vitamaticusa.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 5
ProHealth Longevity
TMG Pro, Pure TMG Powder
Powder
80Good qualityCountry not stated$0.11per 2.5 g
39% more
- Pack
- $22.20500 servings
- Betaine per serving
- 1 g
- Pack lasts
- 200 daysif you take 2.5 g a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 6
ProHealth Longevity
TMG Pro Powder - 500 grams
Powder
85Good qualityCountry not stated$0.11per 2.5 g
39% more
- Pack
- $22.20500 servings
- Betaine per serving
- 1 g
- Pack lasts
- 200 daysif you take 2.5 g a day
prohealth.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 7
BulkSupplements
Betaine Anhydrous (TMG) Powder
Powder
80Good qualityCountry not stated$0.12per 2.5 g
57% more
- Pack
- $24.97333 servings
- Betaine per serving
- 1.5 g
- Pack lasts
- 199 daysif you take 2.5 g a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 8
ProHealth Longevity
TMG Pro Powder - 250 grams
Powder
85Good qualityCountry not stated$0.15per 2.5 g
86% more
- Pack
- $14.80250 servings
- Betaine per serving
- 1 g
- Pack lasts
- 100 daysif you take 2.5 g a day
prohealth.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 9
ProHealth Longevity
TMG Pro Powder - 1 kilo
Powder
85Good qualityCountry not stated$0.15per 2.5 g
90% more
- Pack
- $30.37500 servings
- Betaine per serving
- 1 g
- Pack lasts
- 200 daysif you take 2.5 g a day
prohealth.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 10
Vitamatic
TMG, 1,000 mg
Tablets
80Good qualityCountry not stated$0.21per 2.5 g
161% more
- Pack
- $9.99120 tablets
- Betaine per serving
- 1 gin 1 tablet
- Pack lasts
- 40 daysif you take 3 tablets (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 11
NOW Foods
Sports, Betaine Powder
Powder
80Good qualityMade in Finland$0.22per 2.5 g
171% more
- Pack
- $14.69170 g (6 oz)106 servings
- Betaine per serving
- 1.6 gin 1.6 g
- Pack lasts
- 68 daysif you take 2.5 g a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 12
BulkSupplements
Betaine Anhydrous (TMG) Powder
Powder
80Good qualityCountry not stated$0.22per 2.5 g
175% more
- Pack
- $21.97167 servings
- Betaine per serving
- 1.5 g
- Pack lasts
- 100 daysif you take 2.5 g a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 13
Nutricost
Betaine Anhydrous
Capsules
85Good qualityMade in USA$0.28per 2.5 g
248% more
- Pack
- $10.00120 capsules60 servings
- Betaine per serving
- 1.5 gin 2 capsules
- Pack lasts
- 30 daysif you take 4 capsules (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 14
Nutricost
TMG, 750 mg
Capsules
85Good qualityMade in USA$0.28per 2.5 g
248% more
- Pack
- $10.00120 capsules
- Betaine per serving
- 0.75 gin 1 capsule
- Pack lasts
- 30 daysif you take 4 capsules (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 15
ProHealth Longevity
TMG Pro, Pure TMG Powder
Powder
80Good qualityCountry not stated$0.31per 2.5 g
287% more
- Pack
- $12.33100 servings
- Betaine per serving
- 1 g
- Pack lasts
- 40 daysif you take 2.5 g a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 16
ProHealth Longevity
TMG Pro Powder - 100 grams
Powder
85Good qualityCountry not stated$0.31per 2.5 g
287% more
- Pack
- $12.33100 servings
- Betaine per serving
- 1 g
- Pack lasts
- 40 daysif you take 2.5 g a day
prohealth.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 17
Vitamatic
TMG 1000mg Supplement
Tablets
80Good qualityCountry not stated$0.31per 2.5 g
292% more
- Pack
- $14.99120 tablets
- Betaine per serving
- 1 gin 1 tablet
- Pack lasts
- 40 daysif you take 3 tablets (3 g) a day
vitamaticusa.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 18
Nutricost
Betaine Anhydrous (TMG) Capsules
Capsules
85Good qualityCountry not stated$0.33per 2.5 g
317% more
- Pack
- $11.97120 capsules60 servings
- Betaine per serving
- 1.5 gin 2 capsules
- Pack lasts
- 30 daysif you take 4 capsules (3 g) a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 19
Nutricost
TMG Capsules
Capsules
85Good qualityCountry not stated$0.33per 2.5 g
317% more
- Pack
- $11.97120 capsules
- Betaine per serving
- 0.75 gin 1 capsule
- Pack lasts
- 30 daysif you take 4 capsules (3 g) a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 20
ProHealth Longevity
TMG Pro, 1,000 mg
Tablets
80Good qualityCountry not stated$0.35per 2.5 g
333% more
- Pack
- $16.57120 tablets
- Betaine per serving
- 1 gin 1 tablet
- Pack lasts
- 40 daysif you take 3 tablets (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 21
ProHealth Longevity
TMG Pro Tablets - 1000 mg
Tablets
85Good qualityCountry not stated$0.35per 2.5 g
333% more
- Pack
- $16.57120 tablets
- Betaine per serving
- 1 gin 1 tablet
- Pack lasts
- 40 daysif you take 3 tablets (3 g) a day
prohealth.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 22
Source Naturals
TMG, 750 mg
Tablets
80Good qualityCountry not stated$0.39per 2.5 g
390% more
- Pack
- $28.16240 tablets
- Betaine per serving
- 0.75 gin 1 tablet
- Pack lasts
- 60 daysif you take 4 tablets (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 23
Source Naturals
TMG
Tablets
80Good qualityCountry not stated$0.41per 2.5 g
413% more
- Pack
- $14.74120 tablets
- Betaine per serving
- 0.75 gin 1 tablet
- Pack lasts
- 30 daysif you take 4 tablets (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 24
Micro Ingredients
TMG 2000mg
Capsules
85Good qualityCountry not stated$0.42per 2.5 g
422% more
- Pack
- $19.99240 capsules60 servings
- Betaine per serving
- 2 gin 4 capsules
- Pack lasts
- 48 daysif you take 5 capsules (2.5 g) a day
microingredients.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 25
Source Naturals
TMG
Tablets
80Good qualityCountry not stated$0.44per 2.5 g
449% more
- Pack
- $7.8860 tablets
- Betaine per serving
- 0.75 gin 1 tablet
- Pack lasts
- 15 daysif you take 4 tablets (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 26
Micro Ingredients
TMG
Capsules
80Good qualityMade in USA$0.46per 2.5 g
474% more
- Pack
- $21.99240 capsules60 servings
- Betaine per serving
- 2 gin 4 capsules
- Pack lasts
- 48 daysif you take 5 capsules (2.5 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 27
BulkSupplements
Betaine Anhydrous (TMG) Powder
Powder
80Good qualityCountry not stated$0.50per 2.5 g
523% more
- Pack
- $19.9767 servings
- Betaine per serving
- 1.5 g
- Pack lasts
- 40 daysif you take 2.5 g a day
bulksupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 28
Force Factor
TMG Betaine
Capsules
80Good qualityMade in USA$0.50per 2.5 g
527% more
- Pack
- $17.99180 capsules90 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 36 daysif you take 5 capsules (2.5 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 29
Life Extension
TMG Powder
Powder
80Good qualityCountry not stated$0.54per 2.5 g
579% more
- Pack
- $10.5097 servings
- Betaine per serving
- 0.5 g
- Pack lasts
- 19 daysif you take 2.5 g a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 30
Double Wood Supplements
TMG
Capsules
80Good qualityCountry not stated$0.55per 2.5 g
595% more
- Pack
- $19.95180 capsules90 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 36 daysif you take 5 capsules (2.5 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 31
Double Wood Supplements
TMG Supplement
Capsules
80Good qualityCountry not stated$0.55per 2.5 g
595% more
- Pack
- $19.95180 capsules90 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 36 daysif you take 5 capsules (2.5 g) a day
doublewoodsupplements.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 32
Swanson Vitamins
TMG, 500 mg
Capsules
80Good qualityCountry not stated$0.62per 2.5 g
673% more
- Pack
- $11.0990 capsules45 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 18 daysif you take 5 capsules (2.5 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 33
NutraBio
TMG (Betaine Anhydrous)
Capsules
85Good qualityMade in USA$0.83per 2.5 g
944% more
- Pack
- $14.9990 capsules45 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 18 daysif you take 5 capsules (2.5 g) a day
nutrabio.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 34
Life Extension
TMG, 500 mg
Capsules
80Good qualityCountry not stated$0.84per 2.5 g
959% more
- Pack
- $10.1360 capsules30 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 12 daysif you take 5 capsules (2.5 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 35
NutraBio
Betaine Anhydrous
Capsules
85Good qualityMade in USA$0.87per 2.5 g
996% more
- Pack
- $15.7490 capsules45 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 18 daysif you take 5 capsules (2.5 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 36
Allergy Research Group
TMG
Capsules
80Good qualityCountry not stated$0.92per 2.5 g
1,054% more
- Pack
- $27.60100 capsules
- Betaine per serving
- 0.75 gin 1 capsule
- Pack lasts
- 25 daysif you take 4 capsules (3 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 37
BrainMD
Betaine TMG
Capsules
80Good qualityCountry not stated$1.41per 2.5 g
1,671% more
- Pack
- $16.9560 capsules30 servings
- Betaine per serving
- 1 gin 2 capsules
- Pack lasts
- 12 daysif you take 5 capsules (2.5 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 38
Kirkman Labs
TMG 500 mg - Hypoallergenic
Capsules
80Good qualityCountry not stated$1.53per 2.5 g
1,820% more
- Pack
- $36.75120 capsules
- Betaine per serving
- 0.5 gin 1 capsule
- Pack lasts
- 24 daysif you take 5 capsules (2.5 g) a day
kirkmangroup.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 39
Kirkman Labs
TMG 175 mg
Capsules
80Good qualityCountry not stated$2.25per 2.5 g
2,717% more
- Pack
- $27.50180 capsules
- Betaine per serving
- 0.17 gin 1 capsule
- Pack lasts
- 12 daysif you take 15 capsules (2.55 g) a day
kirkmangroup.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 40
Kirkman Labs
TMG Liquid
Liquid
80Good qualityCountry not stated$2.34per 2.5 g
2,835% more
- Pack
- $44.0094 servings
- Betaine per serving
- 0.5 g
- Pack lasts
- 18 daysif you take 2.5 g a day
kirkmangroup.com (opens in a new tab)Checked Nov 1, 2026 · Label
Good to know
- Fact
- 6,887%more per 2.5 g for the most expensive product than for the cheapest.
- Fact
- 2,835%more per 2.5 g for the cheapest liquid than for the cheapest powder.
How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check
The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.
How we calculate
Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.
Found a mistake or a product we should add? Email us