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Home/Food Benefits/Soy Protein Isolate
Plant-Based Proteins

What Is Soy Protein Isolate Good For?

FoodData CentralUpdated 6 April 2026

Soy Protein Isolate is a plant-based protein source. It is high in protein and a good source of iron. Discover the nutritional benefits and how soy protein isolate can support your health goals.

Soy Protein Isolate provides 93.8 calories, 24.7g protein, 0g carbohydrates, and 0.9g fat per oz (28g). It can be part of a balanced diet as part of a varied nutritional plan.

Key Benefits of Soy Protein Isolate

  • Excellent source of protein for muscle building
  • Very low in fat while providing good protein
  • Low in carbohydrates, suitable for keto diets
  • Very low in sugar
  • Contains folate, important for cell growth and development
  • Good source of calcium (178mg per 100g, 14% DV)
  • Contains iron (14.5mg per 100g, 81% DV)
  • Contains zinc for immune function and wound healing
  • Sustainable protein source

Soy Protein Isolate Is Best For

Muscle recoveryLow-fat dietsLow-carb dietsBlood sugar managementBone healthEnergy and vitalityVegetarian/vegan diets

Nutrition Highlights

  • 24.7g of protein per serving

Things to Consider

  • Higher in sodium (1005mg per 100g) — watch intake if monitoring salt

Complete Nutritional Profile

Per oz (28g)

93.8

cal

0g

carbs

24.7g

protein

0.9g

fat

0g

fiber

Related Foods

365 Organic Unsweetened Almond Milk

29 cal | 1.7g protein

Adzuki Bean

294.4 cal | 17.3g protein

Adzuki Beans

648.1 cal | 39.1g protein

Almond Milk

39.3 cal | 1g protein

Learn More About Soy Protein Isolate

Is Soy Protein Isolate Healthy?Calories in Soy Protein IsolateCarbs in Soy Protein IsolateProtein in Soy Protein IsolateFat in Soy Protein IsolateFiber in Soy Protein IsolateAll Plant-Based Proteins

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