Calories in Whey Protein Powder

116kcal per 1 scoop (30 g)

388 kcal per 100 g · about 6% of a 2,000-kcal day

A scoop of whey shaken with water is about 116 calories for 23 g of protein — the most calorie-efficient protein source most people can buy.

Whey Protein Powder nutrition facts

NutrientPer 100 gPer 1 scoop
Calories388 kcal116 kcal
Protein78.1 g23.4 g
Carbs7.8 g2.3 g
Fat5.3 g1.6 g
Fiber0 g0 g
Sugar5 g1.5 g

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Values based on USDA FoodData Central reference entries. Actual nutrition varies with variety, preparation, and portion. © 2026 NibbleCal.