Soybeans (Mature Dry)
Beans, Lentils & Pulses · 10 specs
Direct Answer
Soybeans (Glycine max) are oilseed legumes containing complete plant protein. Per 100g dry, they provide 446 kcal, 36.5g complete protein, 19.9g healthy lipids, 30.2g carbohydrates (9.3g fiber), and a near-perfect PDCAAS score of 0.95–1.0.
Source: USDA FoodData Central (FDC ID: 174270) · Last reviewed Aug 28, 2026
Specs
| Energy / Calories | 446 kcal |
| Protein | 36.5 g |
| Carbohydrates | 30.2 g |
| Dietary Fiber | 9.3 g |
| Net Carbohydrates | 20.9 g |
| Total Fat | 19.9 g |
| Iron (Non-Heme) | 15.7 mg |
| Potassium | 1797 mg |
| PDCAAS Amino Score | 0.98 (Complete Protein) |
| Glycemic Index (GI) | 16 (Ultra-Low) |
Highest Protein & Isoflavone Content
Soybeans have the highest protein density among all legumes, offering a balanced amino acid profile comparable to egg and milk proteins, alongside natural genistein and daidzein isoflavones.
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