Soybeans vs Soy protein isolate
Nutrition comparison per 100g · USDA SR Legacy & USDA SR Legacy
Soybeans, mature seeds, roasted, no salt added is higher in more vitamins & minerals
Calories (kcal)
Soybeans 469
Soy protein 335
Protein (g)
Soybeans 38.5
Soy protein 88.3
Carbs (g)
Soybeans 30.2
Soy protein 0
Fat (g)
Soybeans 25.4
Soy protein 3.39
Fiber (g)
Soybeans 17.7
Soy protein 0
Quick answers
Which has more protein?
Soy protein isolate — 88.3g vs 38.5g per 100g.
Which has fewer calories?
Soy protein isolate — 335 vs 469 kcal per 100g.
Which is more nutrient-dense?
Soybeans, mature seeds, roasted, no salt added scores higher in more vitamins and minerals per 100g, though both foods can be part of a healthy diet.
Full Nutrition Comparison
All values per 100g edible portion. Green = Food A higher · Blue = Food B higher
| Nutrient | Soybeans | Soy protein isolate | Diff |
|---|---|---|---|
| Energy | |||
| Energy | 469 kcal | 335 kcal | +40% |
| Macronutrients | |||
| Water | 1.95 g | 4.98 g | -61% |
| Protein | 38.5 g | 88.3 g | -56% |
| Total lipid (fat) | 25.4 g | 3.39 g | +649% |
| Carbohydrate, by difference | 30.2 g | 0 g | |
| Fiber, total dietary | 17.7 g | 0 g | |
| Fats & Fatty Acids | |||
| Fatty acids, total saturated | 3.67 g | 0.422 g | +771% |
| Fatty acids, total monounsaturated | 5.61 g | 0.645 g | +770% |
| Fatty acids, total trans | 0 g | 0 g | = |
| Cholesterol | 0 mg | 0 mg | = |
| Vitamins | |||
| Vitamin C, total ascorbic acid | 2.20 mg | 0 mg | |
| Thiamin (Vitamin B1) | 0.100 mg | 0.176 mg | -43% |
| Riboflavin (Vitamin B2) | 0.145 mg | 0.100 mg | +45% |
| Niacin (Vitamin B3) | 1.41 mg | 1.44 mg | -2% |
| Pantothenic acid (Vitamin B5) | 0.453 mg | 0.060 mg | +655% |
| Vitamin B-6 — Pyridoxine | 0.208 mg | 0.100 mg | +108% |
| Biotin (Vitamin B7) | 211 ug | 176 ug | +20% |
| Folate, total (Vitamin B9) | 0 ug | 0 ug | = |
| Choline, total | — | 191 mg | |
| Vitamin B-12 — Cobalamin | 0 ug | 0 ug | = |
| Vitamin A, RAE | 0 ug | 0 ug | = |
| Carotene, beta | — | 0 ug | |
| Carotene, alpha | — | 0 ug | |
| Vitamin E (alpha-tocopherol) | — | 0 mg | |
| Vitamin D (D2 + D3) | 0 ug | 0 ug | = |
| Minerals | |||
| Calcium, Ca | 138 mg | 178 mg | -22% |
| Iron, Fe | 3.90 mg | 14.5 mg | -73% |
| Magnesium, Mg | 145 mg | 39.0 mg | +272% |
| Phosphorus, P | 363 mg | 776 mg | -53% |
| Potassium, K | 1470 mg | 81.0 mg | +1715% |
| Sodium, Na | 4.00 mg | 1005 mg | -100% |
| Zinc, Zn | 3.14 mg | 4.03 mg | -22% |
| Copper, Cu | 0.828 mg | 1.60 mg | -48% |
| Manganese, Mn | 2.16 mg | 1.49 mg | +45% |
| Selenium, Se | 19.1 ug | 0.800 ug | +2288% |
| Other Nutrients | |||
| Energy | 1964 kj | 1401 kj | +40% |
| Ash | 3.88 g | 3.58 g | +8% |
| Total Sugars | — | 0 g | |
| Folic acid (Vitamin B9 — synthetic) | 211 ug | 176 ug | +20% |
| Folate, DFE (Vitamin B9 — dietary folate equivalents) | 211 ug | 176 ug | +20% |
| Vitamin B-12, added | — | 0 ug | |
| Retinol | 0 ug | 0 ug | = |
| Beta-carotene (Provitamin A) | — | 0 ug | |
| Vitamin A, IU | 0 IU | 0 IU | = |
| Beta-cryptoxanthin (Provitamin A) | — | 0 ug | |
| Lycopene | — | 0 ug | |
| Vitamin E, added | — | 0 mg | |
| Vitamin D (D2 + D3 — total) | 0 IU | 0 IU | = |
| Vitamin K1 — Phylloquinone | — | 0 ug | |
| SFA 4:0 (Butyric acid) | 0 g | 0 g | = |
| SFA 6:0 (Caproic acid) | 0 g | 0 g | = |
| SFA 8:0 (Caprylic acid) | 0 g | 0 g | = |
| SFA 10:0 (Capric acid) | 0 g | 0 g | = |
| SFA 12:0 (Lauric acid) | 0 g | 0 g | = |
| SFA 14:0 (Myristic acid) | 0.071 g | 0.008 g | +787% |
| SFA 16:0 (Palmitic acid) | 2.70 g | 0.310 g | +770% |
| SFA 18:0 (Stearic acid) | 0.907 g | 0.104 g | +772% |
| MUFA 16:1 (Omega-7, Palmitoleic acid) | 0.071 g | 0.008 g | +787% |
| MUFA 18:1 (Omega-9, Oleic acid family) | 5.54 g | 0.637 g | +770% |
| MUFA 20:1 (Omega-9, Gondoic / Gadoleic acid) | 0 g | 0 g | = |
| MUFA 22:1 (Omega-9, Erucic acid family) | 0 g | 0 g | = |
| Fatty acids, total polyunsaturated | 14.3 g | 1.65 g | +770% |
| PUFA 18:2 (Omega-6, Linoleic acid) | 12.6 g | 1.45 g | +770% |
| PUFA 18:3 (Omega-3, Alpha-linolenic family) | 1.69 g | 0.195 g | +769% |
| PUFA 18:4 n-3 (Omega-3, SDA — Stearidonic acid) | 0 g | 0 g | = |
| PUFA 20:4 (Omega-6, Arachidonic acid family) | 0 g | 0 g | = |
| PUFA 20:5 n-3 (Omega-3, EPA — Eicosapentaenoic acid) | 0 g | 0 g | = |
| PUFA 22:5 n-3 (Omega-3, DPA — Docosapentaenoic acid) | 0 g | 0 g | = |
| PUFA 22:6 n-3 (Omega-3, DHA — Docosahexaenoic acid) | 0 g | 0 g | = |
| Tryptophan (EAA) | 0.512 g | 1.12 g | -54% |
| Threonine (EAA) | 1.53 g | 3.14 g | -51% |
| Isoleucine (EAA, BCAA) | 1.71 g | 4.25 g | -60% |
| Leucine (EAA, BCAA) | 2.87 g | 6.78 g | -58% |
| Lysine (EAA) | 2.34 g | 5.33 g | -56% |
| Methionine (EAA) | 0.475 g | 1.13 g | -58% |
| Cystine (conditionally essential) | 0.567 g | 1.05 g | -46% |
| Phenylalanine (EAA) | 1.84 g | 4.59 g | -60% |
| Tyrosine (conditionally essential) | 1.33 g | 3.22 g | -59% |
| Valine (EAA, BCAA) | 1.76 g | 4.10 g | -57% |
| Arginine (conditionally essential) | 2.73 g | 6.67 g | -59% |
| Histidine (EAA) | 0.950 g | 2.30 g | -59% |
| Alanine | 1.66 g | 3.59 g | -54% |
| Aspartic acid | 4.43 g | 10.2 g | -57% |
| Glutamic acid | 6.82 g | 17.5 g | -61% |
| Glycine (conditionally essential) | 1.63 g | 3.60 g | -55% |
| Proline (conditionally essential) | 2.06 g | 4.96 g | -58% |
| Serine | 2.04 g | 4.59 g | -56% |
| Alcohol, ethyl | 0 g | 0 g | = |
| Caffeine | — | 0 mg | |
| Theobromine | — | 0 mg | |
| Daidzein | — | 30.8 mg | |
| Genistein | — | 57.3 mg | |
| Isoflavones | |||
| Total isoflavones | — | 91.1 mg | |
* All values per 100g edible portion. Source: USDA SR Legacy and USDA SR Legacy. Diff column shows percentage difference relative to Food B.
Soybeans, mature seeds, roasted, no salt added nutrition facts Soy protein isolate nutrition facts Compare other foods →
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