Protein bars: fewest calories
Of the 1,710 products in the protein bars aisle of USDA's branded food database, Peanut Butter Egg White Protein Bar by Julian Bakery has the fewest calories: 261 per 100 g (170 per 65.1 g serving); the aisle's median is 400 calories. 0% of those with a declared serving (0) are at or under FDA's "low calorie" line per labeled serving: 40 calories or less, also per 50 g for servings of 30 g or less, 120 per 100 g for meal and main-dish products (21 CFR 101.60(b)(2) and (b)(3); FDA tests per reference amount).
Source: USDA FoodData Central branded foods, April 30, 2026 release; values per 100 g as submitted by manufacturers; one product per UPC.
Updated · By GetFoodFacts · data: USDA FoodData Central, April 30, 2026 release · how the figures are checked
Which protein bars has the fewest calories per 100 g?
- 1Julian Bakery · 65.1 g serving261per 100 g · 170 per serving
- 2Quest · 60 g serving267per 100 g · 160 per serving
- 3Quest · 60 g serving267per 100 g · 160 per serving
- 4Julian Bakery · 62 g serving274per 100 g · 170 per serving
- 5Proganics · 45 g serving280per 100 g · 126 per serving
- 6Quest Bar · 60 g serving283per 100 g · 170 per serving
- 7Quest Bar · 60 g serving283per 100 g · 170 per serving
- 8Quest · 60 g serving283per 100 g · 170 per serving
- 9Quest · 60 g serving283per 100 g · 170 per serving
- 10Quest · 60 g serving283per 100 g · 170 per serving
- 11Quest · 60 g serving283per 100 g · 170 per serving
- 12Quest · 60 g serving283per 100 g · 170 per serving
- 13Quest · 60 g serving283per 100 g · 170 per serving
- 14Quest Hero · 60 g serving283per 100 g · 170 per serving
- 15Quest Hero · 60 g serving283per 100 g · 170 per serving
- 16Quest · 60 g serving283per 100 g · 170 per serving
- 17Quest Hero · 60 g serving283per 100 g · 170 per serving
- 18Quest · 52 g serving288per 100 g · 150 per serving
- 19Quest Hero · 52 g serving288per 100 g · 150 per serving
- 20Quest · 38 g serving289per 100 g · 110 per serving
- 21Quest · 55 g serving291per 100 g · 160 per serving
- 22Quest · 55 g serving291per 100 g · 160 per serving
- 23Quest · 55 g serving291per 100 g · 160 per serving
- 24Julian Bakery · 65 g serving292per 100 g · 190 per serving
- 25Chocoa Rite · 34 g serving294per 100 g · 100 per serving
- 26Chocorite · 34 g serving294per 100 g · 100 per serving
- 27Chocorite · 34 g serving294per 100 g · 100 per serving
- 28Nugo · 50 g serving300per 100 g · 150 per serving
- 29Quest Bar · 60 g serving300per 100 g · 180 per serving
- 30Quest Bar · 60 g serving300per 100 g · 180 per serving
- 31Quest · 60 g serving300per 100 g · 180 per serving
- 32Quest · 60 g serving300per 100 g · 180 per serving
- 33Quest · 60 g serving300per 100 g · 180 per serving
- 34Quest · 60 g serving300per 100 g · 180 per serving
- 35Quest · 60 g serving300per 100 g · 180 per serving
- 36Quest · 60 g serving300per 100 g · 180 per serving
- 37Quest · 60 g serving300per 100 g · 180 per serving
- 38Quest · 60 g serving300per 100 g · 180 per serving
- 39Quest · 60 g serving300per 100 g · 180 per serving
- 40Quest · 60 g serving300per 100 g · 180 per serving
- 41Quest · 60 g serving300per 100 g · 180 per serving
- 42Julian Bakery · 60 g serving300per 100 g · 180 per serving
- 43Quest · 60 g serving300per 100 g · 180 per serving
- 44Quest · 60 g serving300per 100 g · 180 per serving
- 45Quest · 60 g serving300per 100 g · 180 per serving
- 46Quest · 60 g serving300per 100 g · 180 per serving
- 47Quest · 60 g serving300per 100 g · 180 per serving
- 48Quest · 60 g serving300per 100 g · 180 per serving
- 49Quest · 60 g serving300per 100 g · 180 per serving
- 50Quest · 60 g serving300per 100 g · 180 per serving
- 51Quest · 60 g serving300per 100 g · 180 per serving
- 52Quest · 60 g serving300per 100 g · 180 per serving
- 53Quest · 60 g serving300per 100 g · 180 per serving
- 54Quest · 60 g serving300per 100 g · 180 per serving
- 55Quest · 60 g serving300per 100 g · 180 per serving
- 56Quest · 60 g serving300per 100 g · 180 per serving
- 57Quest · 60 g serving300per 100 g · 180 per serving
- 58Quest Hero · 60 g serving300per 100 g · 180 per serving
- 59Vital Proteins · 50 g serving300per 100 g · 150 per serving
- 60Vital Proteins · 50 g serving300per 100 g · 150 per serving
- 61Vital Proteins · 50 g serving300per 100 g · 150 per serving
- 62Vital Proteins · 50 g serving300per 100 g · 150 per serving
- 63Oh Yeah! · 65 g serving308per 100 g · 200 per serving
- 64Met-rx · 65 g serving308per 100 g · 200 per serving
- 65Met-rx · 65 g serving308per 100 g · 200 per serving
- 66Met-rx · 65 g serving308per 100 g · 200 per serving
- 67Chocorite · 34 g serving309per 100 g · 105 per serving
- 68Chocorite · 64 g serving312per 100 g · 200 per serving
- 69Chocorite · 32 g serving312per 100 g · 100 per serving
- 70Chocorite · 64 g serving312per 100 g · 200 per serving
- 71Promax · 67 g serving313per 100 g · 210 per serving
- 72Promax · 57 g serving316per 100 g · 180 per serving
- 73No Cow · 60 g serving317per 100 g · 190 per serving
- 74No Cow · 60 g serving317per 100 g · 190 per serving
- 75Member's Mark · 60 g serving317per 100 g · 190 per serving
- 76Member's Mark · 60 g serving317per 100 g · 190 per serving
- 77Quest · 60 g serving317per 100 g · 190 per serving
- 78No Cow · 60 g serving317per 100 g · 190 per serving
- 79Kirkland Signature · 60 g serving317per 100 g · 190 per serving
- 80Quest · 60 g serving317per 100 g · 190 per serving
- 81No Cow · 60 g serving317per 100 g · 190 per serving
- 82Quest · 60 g serving317per 100 g · 190 per serving
- 83No Cow · 60 g serving317per 100 g · 190 per serving
- 84Quest · 60 g serving317per 100 g · 190 per serving
- 85Quest · 60 g serving317per 100 g · 190 per serving
- 86Quest · 60 g serving317per 100 g · 190 per serving
- 87Quest · 60 g serving317per 100 g · 190 per serving
- 88Quest · 60 g serving317per 100 g · 190 per serving
- 89Quest · 60 g serving317per 100 g · 190 per serving
- 90Pure Protein · 60 g serving317per 100 g · 190 per serving
- 91Quest · 60 g serving317per 100 g · 190 per serving
- 92Quest · 60 g serving317per 100 g · 190 per serving
- 93Quest · 60 g serving317per 100 g · 190 per serving
- 94Quest · 60 g serving317per 100 g · 190 per serving
- 95No Cow · 60 g serving317per 100 g · 190 per serving
- 96Questbar · 60 g serving317per 100 g · 190 per serving
- 97Quest · 60 g serving317per 100 g · 190 per serving
- 98Quest · 60 g serving317per 100 g · 190 per serving
- 99No Cow · 60 g serving317per 100 g · 190 per serving
- 100Equate · 60 g serving317per 100 g · 190 per serving
How this ranking is made
1,710 products in the aisle declare calories; 1,684 are ranked, leaving out 2 records whose label contradicts itself or that sit outside the aisle's range; 24 that do not declare all seven core label values (each rule). Values are per 100 g as each manufacturer submitted them to USDA, one product per UPC (its newest submission that meets the data contract), and one per product sold under several UPCs with the same label. The top 100 are shown; each was read again from USDA's live record at this release, and USDA's corrections are applied.
Download: the top 250 as CSV (CC BY 4.0).
What this ranking does not measure
Taste, price, where it is sold and whether the recipe changed since the manufacturer's last submission. Each product page shows the date of its record.
See the whole protein bars aisle
Sources for this page
- USDA FoodData Central
- the food and product records, April 30, 2026 release. fdc.nal.usda.gov
- FoodData Central documentation
- what each data type is and how branded records are submitted. fdc.nal.usda.gov
- 21 CFR 101.9, Nutrition labeling of food
- the label format, rounding and Daily Values. ecfr.gov
- 21 CFR 101 subpart D, Nutrient content claims
- the thresholds for "low sodium", "sugar free", "high in". ecfr.gov
- FDA, How to Understand and Use the Nutrition Facts Label
- the 5% and 20% Daily Value rule. fda.gov