Comparison
100% Soy Isolate and Soy Protein Isolate Natural Unflavored
100% Soy Isolate (GNC Pro Performance) lists 14 distinct ingredients and Soy Protein Isolate Natural Unflavored (NOW Sports) 14 (rows of one ingredient counted once); 14 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | 100% Soy Isolate | Soy Protein Isolate Natural Unflavored |
|---|---|---|
| Carbohydrate | 1 g | 1 g |
| Vitamin C | not disclosed | not disclosed |
| Calcium | not disclosed | not disclosed |
| Sodium | 410 mg | 200 mg |
| Sugar | 0 g | 0 g |
| Fat (unspecified) | 1 g | 0.5 g |
| Potassium | 59 mg (1%) | 80 mg (2%) |
| Vitamin A | not disclosed | not disclosed |
| Protein | 25 g | 20 g |
| Fiber | 0 g | 1 g |
| Iron | not disclosed | not disclosed |
| Saturated fat | 0.5 g | 0 g |
| Cholesterol | 0 mg | 0 mg |
| Trans fat | 0 mg | 0 mg |
Amounts are per serving as DSLD gives them: 100% Soy Isolate, 30 g; Soy Protein Isolate Natural Unflavored, 24 g. Current labels entered January 2022 and July 2016. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- 100% Soy IsolateGNC Pro Performance: every row against all products listing it
- Soy Protein Isolate Natural UnflavoredNOW Sports: every row against all products listing it