Best Protein Bars

“Best” here means the most protein for the calories, not the biggest number on the wrapper. Every bar below is scored on protein per 100 calories: how much protein you get for the calories you spend, a number that cannot be inflated by simply making the bar bigger. After protein per calorie, we rank on lower sugar, then more fiber. To qualify, a bar needs at least 12g of protein per serving and must not be high in sugar (over 22.5g per 100g). All numbers are transcribed and verified from the manufacturer’s nutrition label. Looking for the highest protein bars instead? See every bar ranked by protein per calorie alone, or tap the protein column below to sort by grams per serving.

Rankings recompute automatically as new verified products are added. Tap a column to sort; product lines with multiple flavours show their best scoring flavour.

#	Product	Protein▼	Calories▼	Protein / 100 kcal▼	Sugar▼	Fiber▼
1	David Protein Bar12 flavoursvaries by flavour	28g	150	18.7g	0g	≤1g
2	Kirkland Signature Protein Bar4 flavoursvaries by flavour	22g	170	12.9g	2g	10g
3	Built Puff12 flavoursvaries by flavour	17g	140	12.1g	6g	0g
4	Quest Bar11 flavours	20g	170	11.8g	0.5g	12g
5	Pure Protein Bar15 flavoursvaries by flavour	21g	180	11.7g	3g	2g
6	Built Sour Puff5 flavours	16g	150	10.7g	8g	0g
7	No Cow Protein Bar9 flavours	20g	190	10.5g	≤1g	14g
8	think! High Protein Bar12 flavoursvaries by flavour	20g	200	10g	≤1g	11g
9	Barebells Protein Bar18 flavours	20g	200	10g	≤1g	4g
10	ONE Protein Bar10 flavours	20g	210	9.5g	≤1g	8g