Protein
Protein bars
Snack bars with extra protein, usually from milk or soy. Your body uses protein to build and repair muscle and other tissue.
92 products from US online stores, sorted by what 20 g of protein costs – not by the price per pack.
$1.71Lowest cost
per 20 g protein
- Prices checked Nov 1, 2026, US
- No paid placements
What does 20 g mean?
- protein per serving in most of the products we checked
- 10–20 gprotein per serving in most of the products we checked
- protein per serving for people who exercise (ISSN)
- 20–40 gprotein per serving for people who exercise (ISSN)
- 20 g is about one serving: half of the 92 products we checked have up to 16 g per serving, the other half more.
- There’s no single daily amount for protein – it depends on body weight: 1.4–2.0 g per kg a day for people who exercise, from food and supplements together (ISSN (opens in a new tab)).
We compare by 20 g only so products line up – it’s not a recommendation. Not medical advice. More on amounts, with sources
Where products miss quality points
How the 92 products score
- Very good 90+: 1
- Good 75+: 91
- Fair 60+: 0
- Low under 60: 0
- have no seal from an independent testing program
- 99%have no seal from an independent testing program10 of 30 testing points for GMP, 15 for the 1 whose label says “third-party tested”
- contain artificial sweeteners
- 20%contain artificial sweetenerscosts 2 of the 20 additive points
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 20 g. Pick a size above to compare packs that are alike.
92 products · cheapest per 20 g protein first
- Rank 1
Pure Protein
Birthday Cake Protein Bar
Bars
80Good qualityCountry not stated$1.71per 20 g
Lowest
- Pack
- $20.4912 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 2
Pure Protein
Sundae Cone Protein Bar
Bars
80Good qualityCountry not stated$1.75per 20 g
3% more
- Pack
- $19.9912 bars
- Protein per serving
- 19 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (38 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 3
Pure Protein
Chewy Chocolate Chip Protein Bar
Bars
80Good qualityCountry not stated$1.79per 20 g
5% more
- Pack
- $21.4912 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 4
Pure Protein
Lemon Cake Protein Bar
Bars
80Good qualityCountry not stated$1.79per 20 g
5% more
- Pack
- $21.4912 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 5
Pure Protein
Brookie Protein Bar
Bars
80Good qualityCountry not stated$1.89per 20 g
10% more
- Pack
- $21.4912 bars
- Protein per serving
- 19 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (38 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 6
Pure Protein
Chocolate Mint Cookie Protein Bar
Bars
80Good qualityCountry not stated$1.89per 20 g
10% more
- Pack
- $21.4912 bars
- Protein per serving
- 19 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (38 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 7
Pure Protein
Chocolate Salted Caramel Protein Bar
Bars
80Good qualityCountry not stated$1.89per 20 g
10% more
- Pack
- $21.4912 bars
- Protein per serving
- 19 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (38 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 8
Clif Bar
Builders Protein Bar, Chocolatey Peanut Butter
Bars
80Good qualityCountry not stated$1.95per 20 g
14% more
- Pack
- $11.696 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 6 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 9
Pure Protein
Caramel Churro Protein Bar
Bars
80Good qualityCountry not stated$2.00per 20 g
17% more
- Pack
- $7.994 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 4 daysif you take 1 bar (20 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 10
Pure Protein
Lemon Cake Protein Bar
Bars
80Good qualityCountry not stated$2.00per 20 g
17% more
- Pack
- $7.994 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 4 daysif you take 1 bar (20 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 11
Pure Protein
Chocolate Peanut Butter Protein Bar
Bars
80Good qualityCountry not stated$2.11per 20 g
23% more
- Pack
- $21.4912 bars
- Protein per serving
- 17 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (34 g) a day
pureprotein.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 12
FITCRUNCH
High Protein Baked Bar, Peanut Butter
Bars
78Good qualityMade in USA$2.11per 20 g
24% more
- Pack
- $37.9912 bars
- Protein per serving
- 30 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (30 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 13
Think !
High Protein Bars, Brownie Crunch
Bars · 8 flavors: Brownie Crunch, Chocolate Fudge, Chunky Peanut Butter +5 more
80Good qualityMade in Canada or USA$2.16per 20 g
27% more
- Pack
- $21.6210 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 10 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 14
NuGo Nutrition
Smarte Carb Protein Bar, Chocolate Black Cherry
Bars
78Good qualityCountry not stated$2.31per 20 g
36% more
- Pack
- $25.0012 bars
- Protein per serving
- 18 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (36 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 15
Think !
High Protein Bars, Lemon Delight
Bars · 5 flavors: Brownie Crunch, Chunky Peanut Butter, Creamy Peanut Butter +2 more
80Good qualityMade in Canada or USA$2.33per 20 g
36% more
- Pack
- $11.635 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 5 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 16
BSN
Protein Crisp, Peanut Butter Crunch
Bars · 4 flavors: Chocolate Crunch, Peanut Butter Crunch, Salted Toffee Pretzel +1 more
78Good qualityCountry not stated$2.38per 20 g
39% more
- Pack
- $28.5012 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 17
MusclePharm
Combat Ready Protein Bar, Chocolate Peanut Butter Cup
Bars
78Good qualityCountry not stated$2.50per 20 g
46% more
- Pack
- $29.9912 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 18
MusclePharm
Combat Sport Bar, Chocolate Chip Cookie Dough
Bars
78Good qualityCountry not stated$2.50per 20 g
46% more
- Pack
- $29.9912 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 19
Quest Nutrition
Protein Bar, Strawberry Shortcake
Bars · 16 flavors: Birthday Cake, Blueberrry Muffin, Chocolate Brownie +13 more
78Good qualityCountry not stated$2.50per 20 g
46% more
- Pack
- $10.004 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 4 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 20
FITCRUNCH
Snack Size Chocolate Banana
Bars
80Good qualityCountry not stated$2.57per 20 g
50% more
- Pack
- $36.9918 bars
- Protein per serving
- 16 gin 1 bar
- Pack lasts
- 9 daysif you take 2 bars (32 g) a day
fitcrunch.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 21
FITCRUNCH
Snack Size Chocolate Coconut Almond
Bars
80Good qualityCountry not stated$2.57per 20 g
50% more
- Pack
- $36.9918 bars
- Protein per serving
- 16 gin 1 bar
- Pack lasts
- 9 daysif you take 2 bars (32 g) a day
fitcrunch.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 22
Ready
Clean Protein Bar, Chocolate Chip
Bars · 3 flavors: Chocolate Chip, Dark Chocolate Sea Salt, Vanilla Swirl
100Very good qualityCountry not stated$2.58per 20 g
51% more
- Pack
- $23.2312 bars
- Protein per serving
- 15 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (30 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 23
ProBar
Protein Bar, Peanut Butter Chocolate
Bars · 3 flavors: Cookie Dough, Peanut Butter Chocolate, Sea Salt Caramel
80Good qualityCountry not stated$2.63per 20 g
54% more
- Pack
- $31.5412 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 24
MET-Rx
Big 100, Meal Replacement Bar, Super Cookie Crunch
Bars · 6 flavors: Chocolate Chip Cookie Dough, Crispy Apple Pie, Peanut Butter Pretzel +3 more
80Good qualityCountry not stated$2.64per 20 g
54% more
- Pack
- $37.959 bars
- Protein per serving
- 32 gin 1 bar
- Pack lasts
- 9 daysif you take 1 bar (32 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 25
Simply Protein
Crispy Snack Bars, Dark Chocolate Almond
Bars · 2 flavors: Dark Chocolate Almond, Lemon Coconut
80Good qualityCountry not stated$2.69per 20 g
58% more
- Pack
- $13.998 bars
- Protein per serving
- 13 gin 1 bar
- Pack lasts
- 4 daysif you take 2 bars (26 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 26
One Brands
Protein Bar, Maple Glazed Doughnut
Bars · 2 flavors: Cinnamon Roll, Maple Glazed Doughnut
78Good qualityCountry not stated$2.75per 20 g
61% more
- Pack
- $32.9612 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 27
MusclePharm
Combat Ready Protein Bar, Chocolate Chip Cookie Dough
Bars · 3 flavors: Chocolate Cake, Chocolate Chip Cookie Dough, Chocolate Peanut Butter Cup
78Good qualityCountry not stated$2.75per 20 g
61% more
- Pack
- $10.994 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 4 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 28
ALLMAX
Hexapro, Protein Bar, Chocolate Peanut Butter Cup
Bars · 2 flavors: Chocolate Chip Cookie Dough, Chocolate Peanut Butter Cup
78Good qualityMade in USA$2.75per 20 g
61% more
- Pack
- $32.9912 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 29
Rise Bar
Protein Bar, Almond Honey
Bars · 6 flavors: Almond Honey, Chocolatey Almond, Honey Cinnamon +3 more
80Good qualityCountry not stated$2.75per 20 g
61% more
- Pack
- $29.7512 bars
- Protein per serving
- 18 gin 1 bar
- Pack lasts
- 6 daysif you take 2 bars (36 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 30
FITCRUNCH
Wafer Protein Bar, Chocolate Peanut Butter
Bars
78Good qualityMade in USA$2.76per 20 g
62% more
- Pack
- $19.869 bars
- Protein per serving
- 16 gin 1 bar
- Pack lasts
- 4 daysif you take 2 bars (32 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 31
Raw Nutrition
Protein Bar, Dark Chocolate Cookie Butter
Bars · 4 flavors: Dark Chocolate Cookie Butter, Double Fudge Brownie, Peanut Butter Fudge +1 more
78Good qualityMade in USA$2.78per 20 g
63% more
- Pack
- $34.9912 bars
- Protein per serving
- 21 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (21 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 32
Think !
Snack Protein Bar, Salted Caramel
Bars
80Good qualityMade in Canada or USA$2.78per 20 g
63% more
- Pack
- $6.965 bars
- Protein per serving
- 10 gin 1 bar
- Pack lasts
- 2 daysif you take 2 bars (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 33
Think !
Snack Protein Bar, S'mores
Bars · 3 flavors: Cupcake Batter, S'mores, Salted Caramel
80Good qualityCountry not stated$2.80per 20 g
64% more
- Pack
- $14.0010 bars
- Protein per serving
- 10 gin 1 bar
- Pack lasts
- 5 daysif you take 2 bars (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 34
MET-Rx
Protein Plus Bar, Peanut Butter Cup
Bars
76Good qualityMade in USA$2.81per 20 g
65% more
- Pack
- $37.959 bars
- Protein per serving
- 30 gin 1 bar
- Pack lasts
- 9 daysif you take 1 bar (30 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 35
Quest Nutrition
Stacks, Protein Bar, Cinnamon Brown Sugar
Bars · 3 flavors: Brownie A La Mode, Cinnamon Brown Sugar, Salted Caramel
76Good qualityCountry not stated$2.86per 20 g
67% more
- Pack
- $11.444 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 4 daysif you take 1 bar (20 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 36
Quest Nutrition
Protein Bar, Chocolate Chip Cookie Dough
Bars · 19 flavors: Apple Pie, Birthday Cake, Blueberry Muffin +16 more
78Good qualityCountry not stated$2.88per 20 g
69% more
- Pack
- $36.3512 bars
- Protein per serving
- 21 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (21 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 37
Think !
High Protein Layered Bar, Chocolate & Creme Cupcake
Bars
80Good qualityMade in Canada or USA$2.90per 20 g
70% more
- Pack
- $10.895 bars
- Protein per serving
- 15 gin 1 bar
- Pack lasts
- 2 daysif you take 2 bars (30 g) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 38
Barebells
Protein Bar - Caramel Cashew
Bars
80Good qualityCountry not stated$2.99per 20 g
75% more
- Pack
- $35.8812 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 39
Barebells
Protein Bar - Chocolate Dough
Bars
80Good qualityCountry not stated$2.99per 20 g
75% more
- Pack
- $35.8812 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 40
Barebells
Protein Bar - Cookies & Cream
Bars
80Good qualityCountry not stated$2.99per 20 g
75% more
- Pack
- $35.8812 bars
- Protein per serving
- 20 gin 1 bar
- Pack lasts
- 12 daysif you take 1 bar (20 g) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
What amount is typical?
20–40 g
protein per serving for people who exercise (ISSN)
Source: ISSN position stand on protein (2017) (opens in a new tab)10–32 g
protein per serving in the 92 products we checked
Per serving, the 92 products we checked have 10–32 g. ISSN, per serving: 20–40 g.
On the label: A bar with 12 g of protein can look cheap per bar and still be expensive per gram of protein.
These are amounts from the sources above, not a recommendation for you. Not medical advice – ask a doctor or pharmacist what’s right for you.
Good to know
- Fact
- 280%more per 20 g for the most expensive product than for the cheapest.
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