Top 10 · Updated October 2026

Lowest-Calorie Whey Protein

The 10 lightest whey protein products on this list range from 344.6 to 381 kcal per 100 g. The whey protein with the fewest calories per 100 g, so you can compare energy density at a glance. We checked 21 whey protein with complete data.

1

Fermented Yeast Protein - Chocolate

Superyou Pro

a NOVA 4 345 kcal 1.2 g sugar 62 g protein 3.5 g fat

Also: Palm oil free · Vegetarian
2

Whey protein

Sixstar · 907 g

362 kcal 4.3 g sugar 63.8 g protein 5.3 g fat
3

Pure Whey Isolate

Bulk Powders

NOVA 4 365 kcal 1.4 g sugar 84 g protein 0.6 g fat

Also: Palm oil free
4

Bio Whey Protein vanille

LeeSport

d 369 kcal 9.9 g sugar 72 g protein 4.5 g fat
5

Double Chocolate

Naked Whey

d NOVA 4 372 kcal 16.3 g sugar 58.1 g protein 5.8 g fat

Also: Palm oil free · No additives
6

Whey - Tropical Vanilla

ESN · 908g

d 375 kcal 5 g sugar 79 g protein 4.4 g fat
7

Just whey cookies and cream

Gymbeam · 1000 g

d NOVA 4 377 kcal 6 g sugar 74.9 g protein 5.6 g fat
8

Whey salted caramel

XXL Nutrition

c 378 kcal 4.6 g sugar 79.8 g protein 5.3 g fat
9

Rival whey

Rival

a 381 kcal 3.2 g sugar 76.2 g protein 3.2 g fat
10

Whey Protein Isolate

Bodytech · 24 oz

b NOVA 4 381 kcal 3.5 g sugar 86.5 g protein 3.5 g fat

Also: Palm oil free

How we built this list

We ranked all published whey protein on Foodmetria that have a photo and the required nutrition data, using values per 100 g from the product label. Ties are broken by Nutri-Score and by how often shoppers scan the product. Rankings update automatically as label data changes. Read our methodology.

More whey protein rankings

Healthiest Whey Protein by Nutri-Score Highest-Protein Whey Protein Least Processed Whey Protein Best Low-Sugar Whey Protein All whey protein