Soy Protein Isolate: Protein, Calories & Full Nutrition Breakdown

Why Soy Protein Isolate shows up in protein-forward diets

The highest-quality plant protein powder by DIAAS score, complete on its own without needing to be blended with a second plant source the way pea, rice, or hemp typically are.

Serving-size math

A 1 scoop (30g) portion delivers 27.0g of protein and roughly 112 calories. Scaled per 100 calories, that works out to 24.0g of protein — useful for comparing against other foods on a calorie-matched basis rather than a weight-matched one.

Prep tip

Look for 'isolate,' not 'concentrate,' on the label if avoiding soy's naturally occurring isoflavones is a priority — isolate processing removes most of them.

Best for

• vegan muscle building
• single-source complete plant protein

Allergens

Contains: soy.

Frequently asked