TempoLife › Calorie database › Legumes › Soy protein isolate
Soy protein isolate calories and nutrition facts
100 grams of soy protein isolate contains 335 calories, with 88.3 g of protein, 0 g of carbohydrate and 3.4 g of fat. Most of its calories come from protein.
Where the calories come from
Protein 92% Carbs 0% Fat 8%
How soy protein isolate compares
Per 100 g, against the closest legumes in this database.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Soy protein isolate | 335 kcal | 88.3 g | 0 g | 3.4 g |
| Soy protein concentrate | 328 kcal | 63.6 g | 25.4 g | 0.5 g |
| Soy flour, defatted | 327 kcal | 51.5 g | 33.9 g | 1.2 g |
| Defatted peanut flour | 327 kcal | 52.2 g | 34.7 g | 0.6 g |
| Soy meal, raw | 337 kcal | 49.2 g | 35.9 g | 2.4 g |
Nutrition facts for soy protein isolate
| Nutrient | Per 100 g |
|---|---|
| Calories | 335 kcal |
| Protein | 88.3 g |
| Carbohydrate | 0 g |
| Fat | 3.4 g |
| Fiber | 0 g |
| Sugar | 0 g |
| Saturated fat | 0.4 g |
| Salt | 2.5 g |
Print an EU-style nutrition label for soy protein isolate — per 100 g and per portion.
Vitamins and minerals in soy protein isolate
Per 100 g, highest share of the Daily Value first. %DV = the adult Daily Value (FDA reference). USDA reference data — not medical advice.
| Nutrient | Per 100 g | %DV |
|---|---|---|
| Copper | 1.6 mg | 178% |
| Iron | 14.5 mg | 81% |
| Manganese | 1.5 mg | 65% |
| Phosphorus | 776 mg | 62% |
| Zinc | 4 mg | 37% |
| Choline | 191 mg | 35% |
| Thiamin (B1) | 0.18 mg | 15% |
| Calcium | 178 mg | 14% |
See the richest foods per nutrient in the nutrient toplists.
Calories in common soy protein isolate servings
How many calories in a portion of soy protein isolate — reference serving estimates with the gram weight shown.
| Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 oz (28 g) | 93.8 kcal | 24.7 g | 0 g | 1 g |
| 100 g (100 g) | 335 kcal | 88 g | 0 g | 3 g |
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Frequently asked questions
How many calories are in soy protein isolate?
Soy protein isolate has 335 calories per 100 grams.
How much protein is in soy protein isolate?
Soy protein isolate contains 88.3 g of protein per 100 g.
Is soy protein isolate low in carbs?
Yes by the numbers: Soy protein isolate has 0 g of carbohydrate per 100 g. People following low-carb or keto approaches often include foods in this range — portion size and your own plan still decide.
Is soy protein isolate a good source of protein?
Soy protein isolate provides 88.3 g of protein per 100 g — about 92% of its calories come from protein.
Are these soy protein isolate calories exact?
No. These are per-100-gram reference values from the USDA FoodData Central SR Legacy source family. Portion size, ripeness, cut and cooking method all change the real number, so treat them as an estimate and log your own portion.
Related foods
Source: USDA FoodData Central SR Legacy #174276 (2018-04 release). US Government work — public domain in the United States. Reference values per 100 g edible portion.
