Top 10 · Updated October 2026

Lowest-Calorie Protein Powders

The 10 lightest protein powders products on this list range from 2 to 32 kcal per 100 g. The protein powders with the fewest calories per 100 g, so you can compare energy density at a glance. We checked 4521 protein powders with complete data.

1

Fit for work

Actilife

2 kcal 0 g sugar 0 g protein 0 g fat
2

Whey professional

Zumub · 1 kg

8 kcal 0.7 g sugar 0.2 g protein 0.5 g fat
3

Mixed Berry Protein Water

ISOPURE · 20 fl oz

NOVA 4 10 kcal 0 g sugar 2.5 g protein 0 g fat
4

Real whey isolate

Prozis

11 kcal 1.1 g sugar 0 g protein 0 g fat
5

ISO 100 fruity pebbles

· 600 g

c NOVA 4 13 kcal 3.3 g sugar 0 g protein 0 g fat
6

Pur jus bio Tomate de Marmande

Truvani

NOVA 4 15 kcal 2.9 g sugar 0.7 g protein 0.3 g fat

Also: Palm oil free · No additives
7

Me-first Premium Whey

Me First · 454 g

18 kcal 0 g sugar 4.3 g protein 0 g fat
8

Whey arkens

Black Protein

NOVA 4 21 kcal 1.7 g sugar 0.2 g protein 1 g fat
9

Nu3 Bcaa Pulver, Zitrone

Nu3

25 kcal 2.8 g sugar 0 g protein 0.9 g fat
10

Diamond Grade Whey Protein

Champ

32 kcal 0.7 g sugar 6 g protein 0.5 g fat

How we built this list

We ranked all published protein powders 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.

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