The Best and Worst Protein Bars for Keto (2026)

We reviewed popular protein bars using manufacturer nutrition and ingredient data, then ranked them by adjusted net carbs, sweeteners, and ingredient risk.

By KetoPeek Updated 5/17/2026

Good to know

Net-carb labels can subtract fiber, sugar alcohols, allulose, or glycerin. We only count those subtractions when the manufacturer lists the grams clearly.

Protein bar rankings

1
Mint Chocolate Keto Bars
Keto Bars
Net carbs 3g / Protein 6g
92
2
Delight Peanut Butter Chocolate Cookie Dough Protein Bar
Think!
Net carbs 2.2g / Protein 10g
88
3
Chocolate Peanut Butter Keto Bars
Keto Bars
Net carbs 4g / Protein 8g
88
4
Chocolate Mint Protein Bar
MariGold
Net carbs 1.3g / Protein 20g
85
5
Delight Chocolate Mousse Protein Bar
Think!
Net carbs 3.1g / Protein 10g
85
6
Dark Chocolate Coconut Almond Keto Bars
Keto Bars
Net carbs 5g / Protein 6g
85
7
Dipped Chocolate Chip Cookie Dough Protein Bar
Quest
Net carbs 3.5g / Protein 17g
84
8
German Chocolate Cake Protein Bar
MariGold
Net carbs 2.2g / Protein 20g
82
9
Almond Mocha Crunch Protein Bar
MariGold
Net carbs 2.3g / Protein 20g
82
10
Delight Chocolate Peanut Butter Pie Protein Bar
Think!
Net carbs 4.2g / Protein 10g
82
11
Birthday Cake Protein Bar
Quest
Net carbs 4.6g / Protein 20g
80
12
Double Chocolate Chunk Protein Bar
Quest
Net carbs 4.6g / Protein 20g
80
13
Chocolate Chip Cookie Dough Protein Bar
Quest
Net carbs 4.7g / Protein 21g
80
14
S'mores Protein Bar
Quest
Net carbs 4.7g / Protein 21g
80
15
Cookies & Cream Protein Bar
Quest
Net carbs 4.8g / Protein 21g
80
16
Lemon Cake Protein Bar
Quest
Net carbs 4.8g / Protein 20g
80
17
ChunkyChoco Pecan Protein Bar
MariGold
Net carbs 3.2g / Protein 22g
79
18
Dark & Salty Protein Bar
MariGold
Net carbs 3.3g / Protein 21g
79
19
Pure Joy Protein Bar
MariGold
Net carbs 3.3g / Protein 21g
79
20
Double Fudge Brownie Protein Bar
MariGold
Net carbs 3.3g / Protein 20g
79
21
Chocolate Brownie Protein Bar
Quest
Net carbs 4.9g / Protein 20g
79
22
Chocolate Joy Protein Bar
MariGold
Net carbs 3.4g / Protein 20g
78
23
Chocolate Peanut Butter Protein Bar
Quest
Net carbs 5.7g / Protein 20g
77
24
Oatmeal Chocolate Chip Protein Bar
Quest
Net carbs 5.8g / Protein 20g
77
25
Cookies 'N Cream Protein Bar
No Cow
Net carbs 5.7g / Protein 20g
73
26
Peanut Butter Chocolate Chip Collagen Protein Bar
Perfect Keto
Net carbs 9g / Protein 12g
73
27
Texas Pecan Praline Protein Bar
MariGold
Net carbs 5.2g / Protein 21g
72
28
Salty Caramel Protein Bar
MariGold
Net carbs 5.3g / Protein 22g
72
29
Cookie Dough Protein Bar
MariGold
Net carbs 6.2g / Protein 20g
70
30
Chocolate Chip Cookie Dough Protein Bar
No Cow
Net carbs 6.6g / Protein 20g
67
31
Peanut Butter Chocolate Chip Protein Bar
No Cow
Net carbs 6.8g / Protein 20g
67
32
Oatmeal Cookie Protein Bar
MariGold
Net carbs 8.2g / Protein 20g
64
33
Toasted Coconut Chip Protein Bar
IQBAR
Net carbs 8.3g / Protein 12g
57
34
Wild Blueberry Protein Bar
IQBAR
Net carbs 8.4g / Protein 12g
57
35
Blueberry Muffin Protein Bar
Quest
Net carbs 11.1g / Protein 20g
57
36
Salted Caramel Collagen Protein Bar
Perfect Keto
Net carbs 10.4g / Protein 11g
55
37
White Chocolate Raspberry Protein Bar
Quest
Net carbs 11.6g / Protein 20g
55
38
Chocolate Mint Chip Protein Bar
IQBAR
Net carbs 9.2g / Protein 12g
54
39
Matcha Chai Protein Bar
IQBAR
Net carbs 9.3g / Protein 12g
54
40
Slim Brownie Crunch Protein Bar
NuGo
Net carbs 10.4g / Protein 16g
54
41
Almond Butter Chip Protein Bar
IQBAR
Net carbs 10.2g / Protein 12g
51
42
Banana Nut Protein Bar
IQBAR
Net carbs 10.2g / Protein 12g
51
43
Chocolate Sea Salt Protein Bar
IQBAR
Net carbs 10.2g / Protein 12g
51
44
Lemon Blueberry Protein Bar
IQBAR
Net carbs 10.2g / Protein 12g
51
45
Chocolate Chip Cookie Dough Collagen Protein Bar
Perfect Keto
Net carbs 11.4g / Protein 11g
51
46
Chocolate Almond Brownie Collagen Protein Bar
Perfect Keto
Net carbs 11.4g / Protein 10g
51
47
Slim Raspberry Truffle Protein Bar
NuGo
Net carbs 11.3g / Protein 17g
50
48
Slim Toasted Coconut Protein Bar
NuGo
Net carbs 11.3g / Protein 17g
50
49
Slim Crunchy Peanut Butter Protein Bar
NuGo
Net carbs 11.3g / Protein 16g
50
50
Crunchy Peanut Butter Protein Bar
Kind
Net carbs 11.3g / Protein 12g
50
51
Peanut Butter Chip Protein Bar
IQBAR
Net carbs 12g / Protein 12g
49
52
Slim Chocolate Mint Protein Bar
NuGo
Net carbs 12.3g / Protein 17g
46
53
Slim Espresso Protein Bar
NuGo
Net carbs 12.3g / Protein 16g
46
54
Chocolate Chip Cookie Dough Strong Protein Bar
Atkins
Net carbs 13.6g / Protein 20g
43
55
Dark Chocolate Nut Protein Bar
Kind
Net carbs 13.3g / Protein 12g
42
56
Chocolate Peanut Butter High Protein Bar
Atkins
Net carbs 13.4g / Protein 16g
41
57
Brownie Delight Layered High Protein Bar
Atkins
Net carbs 14.2g / Protein 15g
40
58
Salted Peanut Caramel Protein Bar
Barebells
Net carbs 13.3g / Protein 16g
36
59
Banana Bread Protein Bar
Barebells
Net carbs 13.4g / Protein 20g
36
60
Coco Caramel Almond Protein Bar
Barebells
Net carbs 13.4g / Protein 20g
36
61
Key Lime Pie Protein Bar
Barebells
Net carbs 13.4g / Protein 20g
36
62
White Chocolate Almond Protein Bar
Barebells
Net carbs 13.6g / Protein 20g
35
63
Caramel Cashew Protein Bar
Barebells
Net carbs 13.7g / Protein 20g
34
64
Salty Peanut Protein Bar
Barebells
Net carbs 13.7g / Protein 20g
34
65
Lemon Cheesecake Protein Bar
Barebells
Net carbs 13.8g / Protein 20g
34
66
Birthday Cake Strong Protein Bar
Atkins
Net carbs 14.6g / Protein 20g
34
67
Peanut Butter Protein Bar
Barebells
Net carbs 14.2g / Protein 20g
32
68
Creamy Crisp Protein Bar
Barebells
Net carbs 14.4g / Protein 20g
32
69
Wild Cherry Protein Bar
Barebells
Net carbs 14.4g / Protein 20g
32
70
Chocolate Sea Salt Protein Bar
Rxbar
Net carbs 18g / Protein 12g
31
71
Coconut Chocolate Protein Bar
Rxbar
Net carbs 18g / Protein 12g
31
72
Orange Creamsicle Protein Bar
Barebells
Net carbs 15g / Protein 20g
29
73
Brownie Batter Protein Bar
Barebells
Net carbs 15.4g / Protein 20g
28
74
Peanut Butter Protein Bar
Misfits
Net carbs 15.4g / Protein 14g
27
75
Peanut Butter Chocolate Protein Bar
Rxbar
Net carbs 19g / Protein 12g
27
76
Minty Chocolate Protein Bar
Barebells
Net carbs 14.8g / Protein 16g
26
77
Chocolate Dough Protein Bar
Barebells
Net carbs 15.4g / Protein 20g
24
78
Mint Chocolate Crisp Protein Bar
Barebells
Net carbs 15.4g / Protein 20g
24
79
Cookies & Caramel Protein Bar
Barebells
Net carbs 15.6g / Protein 20g
23
80
Caramel Fudge Protein Bar
Misfits
Net carbs 15.6g / Protein 15g
23
81
Brownie Batter Protein Bar
Misfits
Net carbs 16.4g / Protein 14g
23
82
Cookies & Cream Protein Bar
Barebells
Net carbs 15.7g / Protein 20g
22
83
Banana Caramel Protein Bar
Barebells
Net carbs 15.8g / Protein 16g
22
84
Caramel Choco Protein Bar
Barebells
Net carbs 15.8g / Protein 16g
22
85
Birthday Cake Protein Bar
Barebells
Net carbs 15.8g / Protein 20g
19
86
Peanut Butter & Jelly Protein Bar
Barebells
Net carbs 16.8g / Protein 20g
18
87
Marshmallow Peanut Road Protein Bar
Barebells
Net carbs 17.3g / Protein 16g
16
88
Peanut Butter Protein Breakfast Bars
Kind
Net carbs 23g / Protein 8g
12
89
Vegan Fudge Brownie Protein Bar
Barebells
Net carbs 18.6g / Protein 15g
11
90
Vegan Caramel Peanut Protein Bar
Barebells
Net carbs 18.9g / Protein 15g
10
91
Birthday Cake Protein Bar
ONE Brands
Net carbs 16.6g / Protein 20g
7
92
Vegan Caramel Choco Chip Protein Bar
Barebells
Net carbs 19.4g / Protein 15g
7
93
Vegan Hazelnut Nougat Protein Bar
Barebells
Net carbs 19.2g / Protein 15g
6
94
Apple Cinnamon Protein Breakfast Bars
Kind
Net carbs 26g / Protein 8g
3
95
Maple Glazed Doughnut Protein Bar
ONE Brands
Net carbs 18.5g / Protein 20g
0
96
Chocolate Chip Cookie Dough Protein Bar
ONE Brands
Net carbs 21.2g / Protein 20g
0
97
Peanut Butter Cup Protein Bar
ONE Brands
Net carbs 22g / Protein 20g
0
98
Crispy Chocolate Peanut Butter Protein Max Bar
Kind
Net carbs 22.1g / Protein 20g
0
99
Raspberry Cocoa Crisp Protein Max Bar
Kind
Net carbs 23g / Protein 20g
0
100
Sweet & Salty Caramel Peanut Crisp Protein Max Bar
Kind
Net carbs 23g / Protein 20g
0
101
Honey Oat Protein Breakfast Bars
Kind
Net carbs 27g / Protein 8g
0

Rank	Product name	Brand	Net carbs	Protein	Rating	Score
1	Mint Chocolate Keto Bars	Keto Bars	3g	6g	Excellent	92
2	Delight Peanut Butter Chocolate Cookie Dough Protein Bar	Think!	2.2g	10g	Good	88
3	Chocolate Peanut Butter Keto Bars	Keto Bars	4g	8g	Good	88
4	Chocolate Mint Protein Bar	MariGold	1.3g	20g	Good	85
5	Delight Chocolate Mousse Protein Bar	Think!	3.1g	10g	Good	85
6	Dark Chocolate Coconut Almond Keto Bars	Keto Bars	5g	6g	Good	85
7	Dipped Chocolate Chip Cookie Dough Protein Bar	Quest	3.5g	17g	Good	84
8	German Chocolate Cake Protein Bar	MariGold	2.2g	20g	Good	82
9	Almond Mocha Crunch Protein Bar	MariGold	2.3g	20g	Good	82
10	Delight Chocolate Peanut Butter Pie Protein Bar	Think!	4.2g	10g	Good	82
11	Birthday Cake Protein Bar	Quest	4.6g	20g	Good	80
12	Double Chocolate Chunk Protein Bar	Quest	4.6g	20g	Good	80
13	Chocolate Chip Cookie Dough Protein Bar	Quest	4.7g	21g	Good	80
14	S'mores Protein Bar	Quest	4.7g	21g	Good	80
15	Cookies & Cream Protein Bar	Quest	4.8g	21g	Good	80
16	Lemon Cake Protein Bar	Quest	4.8g	20g	Good	80
17	ChunkyChoco Pecan Protein Bar	MariGold	3.2g	22g	Good	79
18	Dark & Salty Protein Bar	MariGold	3.3g	21g	Good	79
19	Pure Joy Protein Bar	MariGold	3.3g	21g	Good	79
20	Double Fudge Brownie Protein Bar	MariGold	3.3g	20g	Good	79
21	Chocolate Brownie Protein Bar	Quest	4.9g	20g	Good	79
22	Chocolate Joy Protein Bar	MariGold	3.4g	20g	Good	78
23	Chocolate Peanut Butter Protein Bar	Quest	5.7g	20g	Good	77
24	Oatmeal Chocolate Chip Protein Bar	Quest	5.8g	20g	Good	77
25	Cookies 'N Cream Protein Bar	No Cow	5.7g	20g	Good	73
26	Peanut Butter Chocolate Chip Collagen Protein Bar	Perfect Keto	9g	12g	Good	73
27	Texas Pecan Praline Protein Bar	MariGold	5.2g	21g	Good	72
28	Salty Caramel Protein Bar	MariGold	5.3g	22g	Good	72
29	Cookie Dough Protein Bar	MariGold	6.2g	20g	Good	70
30	Chocolate Chip Cookie Dough Protein Bar	No Cow	6.6g	20g	Caution	67
31	Peanut Butter Chocolate Chip Protein Bar	No Cow	6.8g	20g	Caution	67
32	Oatmeal Cookie Protein Bar	MariGold	8.2g	20g	Caution	64
33	Toasted Coconut Chip Protein Bar	IQBAR	8.3g	12g	Caution	57
34	Wild Blueberry Protein Bar	IQBAR	8.4g	12g	Caution	57
35	Blueberry Muffin Protein Bar	Quest	11.1g	20g	Caution	57
36	Salted Caramel Collagen Protein Bar	Perfect Keto	10.4g	11g	Caution	55
37	White Chocolate Raspberry Protein Bar	Quest	11.6g	20g	Caution	55
38	Chocolate Mint Chip Protein Bar	IQBAR	9.2g	12g	Caution	54
39	Matcha Chai Protein Bar	IQBAR	9.3g	12g	Caution	54
40	Slim Brownie Crunch Protein Bar	NuGo	10.4g	16g	Caution	54
41	Almond Butter Chip Protein Bar	IQBAR	10.2g	12g	Caution	51
42	Banana Nut Protein Bar	IQBAR	10.2g	12g	Caution	51
43	Chocolate Sea Salt Protein Bar	IQBAR	10.2g	12g	Caution	51
44	Lemon Blueberry Protein Bar	IQBAR	10.2g	12g	Caution	51
45	Chocolate Chip Cookie Dough Collagen Protein Bar	Perfect Keto	11.4g	11g	Caution	51
46	Chocolate Almond Brownie Collagen Protein Bar	Perfect Keto	11.4g	10g	Caution	51
47	Slim Raspberry Truffle Protein Bar	NuGo	11.3g	17g	Caution	50
48	Slim Toasted Coconut Protein Bar	NuGo	11.3g	17g	Caution	50
49	Slim Crunchy Peanut Butter Protein Bar	NuGo	11.3g	16g	Caution	50
50	Crunchy Peanut Butter Protein Bar	Kind	11.3g	12g	Caution	50
51	Peanut Butter Chip Protein Bar	IQBAR	12g	12g	Caution	49
52	Slim Chocolate Mint Protein Bar	NuGo	12.3g	17g	Caution	46
53	Slim Espresso Protein Bar	NuGo	12.3g	16g	Caution	46
54	Chocolate Chip Cookie Dough Strong Protein Bar	Atkins	13.6g	20g	Caution	43
55	Dark Chocolate Nut Protein Bar	Kind	13.3g	12g	Caution	42
56	Chocolate Peanut Butter High Protein Bar	Atkins	13.4g	16g	Caution	41
57	Brownie Delight Layered High Protein Bar	Atkins	14.2g	15g	Caution	40
58	Salted Peanut Caramel Protein Bar	Barebells	13.3g	16g	Avoid	36
59	Banana Bread Protein Bar	Barebells	13.4g	20g	Avoid	36
60	Coco Caramel Almond Protein Bar	Barebells	13.4g	20g	Avoid	36
61	Key Lime Pie Protein Bar	Barebells	13.4g	20g	Avoid	36
62	White Chocolate Almond Protein Bar	Barebells	13.6g	20g	Avoid	35
63	Caramel Cashew Protein Bar	Barebells	13.7g	20g	Avoid	34
64	Salty Peanut Protein Bar	Barebells	13.7g	20g	Avoid	34
65	Lemon Cheesecake Protein Bar	Barebells	13.8g	20g	Avoid	34
66	Birthday Cake Strong Protein Bar	Atkins	14.6g	20g	Avoid	34
67	Peanut Butter Protein Bar	Barebells	14.2g	20g	Avoid	32
68	Creamy Crisp Protein Bar	Barebells	14.4g	20g	Avoid	32
69	Wild Cherry Protein Bar	Barebells	14.4g	20g	Avoid	32
70	Chocolate Sea Salt Protein Bar	Rxbar	18g	12g	Avoid	31
71	Coconut Chocolate Protein Bar	Rxbar	18g	12g	Avoid	31
72	Orange Creamsicle Protein Bar	Barebells	15g	20g	Avoid	29
73	Brownie Batter Protein Bar	Barebells	15.4g	20g	Avoid	28
74	Peanut Butter Protein Bar	Misfits	15.4g	14g	Avoid	27
75	Peanut Butter Chocolate Protein Bar	Rxbar	19g	12g	Avoid	27
76	Minty Chocolate Protein Bar	Barebells	14.8g	16g	Avoid	26
77	Chocolate Dough Protein Bar	Barebells	15.4g	20g	Avoid	24
78	Mint Chocolate Crisp Protein Bar	Barebells	15.4g	20g	Avoid	24
79	Cookies & Caramel Protein Bar	Barebells	15.6g	20g	Avoid	23
80	Caramel Fudge Protein Bar	Misfits	15.6g	15g	Avoid	23
81	Brownie Batter Protein Bar	Misfits	16.4g	14g	Avoid	23
82	Cookies & Cream Protein Bar	Barebells	15.7g	20g	Avoid	22
83	Banana Caramel Protein Bar	Barebells	15.8g	16g	Avoid	22
84	Caramel Choco Protein Bar	Barebells	15.8g	16g	Avoid	22
85	Birthday Cake Protein Bar	Barebells	15.8g	20g	Avoid	19
86	Peanut Butter & Jelly Protein Bar	Barebells	16.8g	20g	Avoid	18
87	Marshmallow Peanut Road Protein Bar	Barebells	17.3g	16g	Avoid	16
88	Peanut Butter Protein Breakfast Bars	Kind	23g	8g	Avoid	12
89	Vegan Fudge Brownie Protein Bar	Barebells	18.6g	15g	Avoid	11
90	Vegan Caramel Peanut Protein Bar	Barebells	18.9g	15g	Avoid	10
91	Birthday Cake Protein Bar	ONE Brands	16.6g	20g	Avoid	7
92	Vegan Caramel Choco Chip Protein Bar	Barebells	19.4g	15g	Avoid	7
93	Vegan Hazelnut Nougat Protein Bar	Barebells	19.2g	15g	Avoid	6
94	Apple Cinnamon Protein Breakfast Bars	Kind	26g	8g	Avoid	3
95	Maple Glazed Doughnut Protein Bar	ONE Brands	18.5g	20g	Avoid	0
96	Chocolate Chip Cookie Dough Protein Bar	ONE Brands	21.2g	20g	Avoid	0
97	Peanut Butter Cup Protein Bar	ONE Brands	22g	20g	Avoid	0
98	Crispy Chocolate Peanut Butter Protein Max Bar	Kind	22.1g	20g	Avoid	0
99	Raspberry Cocoa Crisp Protein Max Bar	Kind	23g	20g	Avoid	0
100	Sweet & Salty Caramel Peanut Crisp Protein Max Bar	Kind	23g	20g	Avoid	0
101	Honey Oat Protein Breakfast Bars	Kind	27g	8g	Avoid	0

Missing a food? Suggest it here.

How to read these rankings

Treat the score as a keto-fit signal, not a taste ranking. Higher rows usually combine lower adjusted net carbs with clearer label math. Lower rows may still be useful for protein, but they need more carb budget caution.

How we rank protein bars

Each bar starts at 100 and loses points across the same structured product lanes used elsewhere in Keto Peek: adjusted net carbs, macro mismatch, sweetener penalties, and named ingredient red flags.

Protein bars often use fiber blends, sugar alcohols, and glycerin to reach a front-label net-carb number. We keep the math conservative when the manufacturer does not list the subtractable grams directly.

Protein is a tiebreaker

The scorer does not give bars a special protein bonus. When scores and adjusted net carbs match, the table sorts the higher-protein bar first because protein is the point of the category.

What to check in store

Serving size: compare one bar to one bar, not package marketing claims.
Net-carb math: check whether the label lists sugar alcohols, allulose, or glycerin grams.
Sweetener type: erythritol and maltitol are not the same in the scorer.
Protein tradeoff: a 20g protein bar can still be a poor keto fit if adjusted net carbs climb too high.

FAQ

Protein bar FAQ

Can protein bars fit a keto diet?+

Yes, but the best keto protein bars keep adjusted net carbs low (typically under 5g) without relying heavily on maltitol, glycerin, or uncertain fiber blends that may impact blood sugar.

Why do some manufacturer net-carb claims differ from the ranking?+

Brands often subtract all fiber, sugar alcohols, allulose, and glycerin to advertise a lower net-carb count. Keto Peek only subtracts grams clearly listed on the nutrition panel and scores uncertain ingredients conservatively.

Is more protein always better for keto?+

Not necessarily. While protein helps with satiety, a high-protein bar can still be a poor keto fit if it contains hidden starches, harsh sweeteners, or too many adjusted net carbs.

Are sugar alcohols in protein bars keto-friendly?+

It depends on the specific sweetener. Erythritol is highly keto-friendly because it has minimal impact on blood glucose. Maltitol and maltitol syrup, which are common in many bars, can raise blood sugar and are scored cautiously.

Will eating a protein bar kick me out of ketosis?+

Bars with clean ingredients and low adjusted net carbs are unlikely to disrupt ketosis. However, bars sweetened with maltitol or packed with hidden carbs could cause an insulin response and affect your state of ketosis.

Want the scoring details?

For the score formula and sugar-alcohol math behind these rows, read:

Scoring method Sugar alcohols