| Measure | Gelatin powder | Soy protein isolate |
|---|---|---|
| Typical serving | 1 envelope (7 g) | 1 oz (28 g) |
| Protein per serving | 6 g | 24.7 g |
| Protein per 100 g | 85.6 g | 88.3 g |
| Calories per serving | 23 kcal | 94 kcal |
| Protein density | 102% of calories | 105% of calories |
| Share of 50 g Daily Value | 12% | 49% |
| Protein quality | Incomplete | Complete |
| Category | Protein supplements | Protein supplements |
Compare foods · Gelatin powder · Soy protein isolate
Protein comparison
Gelatin powder vs Soy protein isolate: which has more protein?
Gelatin powder gives you 6 g of protein per 1 envelope; soy protein isolate gives you 24.7 g per 1 oz. On equal weight it is 85.6 g against 88.3 g per 100 g. The full side-by-side, from the same USDA-sourced records as the rest of the site:
The verdict
Soy protein isolate has more protein on equal weight: 88.3 g per 100 g against gelatin powder's 85.6 g, a lead of 2.7 g. Per typical serving, soy protein isolate delivers 24.7 g (1 oz) to gelatin powder's 6 g (1 envelope), a difference of 18.7 g.
For the full breakdown of each food, see the protein in gelatin powder and protein in soy protein isolate pages, each with its USDA FoodData Central record id.
Quick answers
Gelatin powder vs Soy protein isolate FAQ
Which has more protein, gelatin powder or soy protein isolate?
Soy protein isolate has more protein per 100 g: 88.3 g against 85.6 g. Per typical serving, gelatin powder provides 6 g (1 envelope) and soy protein isolate provides 24.7 g (1 oz).
Is gelatin powder or soy protein isolate more protein-dense?
Soy protein isolate is the more protein-dense of the two: about 105% of its calories come from protein, against 102% for gelatin powder.
Are gelatin powder and soy protein isolate complete proteins?
Only soy protein isolate is a complete protein with all nine essential amino acids in adequate amounts. Gelatin powder is incomplete on its own and pairs best with other protein sources across the day.
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