| Measure | Soy protein concentrate | Whey protein powder |
|---|---|---|
| Typical serving | 1 oz (28 g) | 1 scoop (26 g) |
| Protein per serving | 17.8 g | 20.3 g |
| Protein per 100 g | 63.6 g | 78.1 g |
| Calories per serving | 92 kcal | 92 kcal |
| Protein density | 78% of calories | 89% of calories |
| Share of 50 g Daily Value | 36% | 41% |
| Protein quality | Complete | Complete |
| Category | Protein supplements | Protein supplements |
Compare foods · Soy protein concentrate · Whey protein powder
Protein comparison
Soy protein concentrate vs Whey protein powder: which has more protein?
Soy protein concentrate gives you 17.8 g of protein per 1 oz; whey protein powder gives you 20.3 g per 1 scoop. On equal weight it is 63.6 g against 78.1 g per 100 g. The full side-by-side, from the same USDA-sourced records as the rest of the site:
The verdict
Whey protein powder has more protein on equal weight: 78.1 g per 100 g against soy protein concentrate's 63.6 g, a lead of 14.5 g. Per typical serving, whey protein powder delivers 20.3 g (1 scoop) to soy protein concentrate's 17.8 g (1 oz), a difference of 2.5 g.
For the full breakdown of each food, see the protein in soy protein concentrate and protein in whey protein powder pages, each with its USDA FoodData Central record id.
Quick answers
Soy protein concentrate vs Whey protein powder FAQ
Which has more protein, soy protein concentrate or whey protein powder?
Whey protein powder has more protein per 100 g: 78.1 g against 63.6 g. Per typical serving, soy protein concentrate provides 17.8 g (1 oz) and whey protein powder provides 20.3 g (1 scoop).
Is soy protein concentrate or whey protein powder more protein-dense?
Whey protein powder is the more protein-dense of the two: about 89% of its calories come from protein, against 78% for soy protein concentrate.
Are soy protein concentrate and whey protein powder complete proteins?
Yes, both. Soy protein concentrate and whey protein powder each supply all nine essential amino acids in adequate amounts, so either can carry a meal's protein on its own.
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