Soybeans (mature, cooked)
1 cup (172g)Protein per 100g18.2g
Calories per 100g173
Fat per 100g9.0g
Carbs per 100g8.4g
Fiber per 100g6.0g
Leucine (per serving, est.)1400mg
Typical cost$
Quality 0.85
DIAAS-adjusted, complete plant protein
veganvegetariangluten-free
Why Soybeans (mature, cooked) shows up in protein-forward diets
The base ingredient for tofu, tempeh, edamame, and most plant protein powders — everything else on this list's soy section is a processed derivative of this bean.
Serving-size math
A 1 cup (172g) portion delivers 31.3g of protein and roughly 298 calories. Scaled per 100 calories, that works out to 10.52g of protein — useful for comparing against other foods on a calorie-matched basis rather than a weight-matched one.
Prep tip
Soak dried soybeans 8+ hours before cooking; they take noticeably longer than most other legumes even after soaking.
Best for
- budget vegan bulking
Allergens
Contains: soy.
Frequently asked
How much protein is in soybeans (mature, cooked)?
18.2g per 100g, or 31.3g per 1 cup (172g).
Is soybeans (mature, cooked) a complete protein?
Yes — it's rated a complete, high-quality protein source (DIAAS-adjusted, complete plant protein).