A typical 1 envelope serving of gelatin powder contains 6 grams of protein (85.6 g per 100 g), which makes it a moderate source of protein. That covers roughly 12% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
About 102% of the calories in gelatin powder come from protein, which makes it extremely protein-dense - close to the practical ceiling for a whole food. Foods in this band are the ones that let you raise your protein intake without raising your calorie intake much at all.
Among the 11 protein supplements in the database, gelatin powder ranks 11th by protein per serving, and 432nd out of all 796 foods on the site. Set against meal replacement bar, another protein supplement entry in the database, a serving carries about 1.6 g less protein (meal replacement bar has 7.6 g per 1 bar).
It is an incomplete protein on its own; pairing it with other plant foods across the day covers the full range of essential amino acids. The serving above is counted by piece at 7 g. Because pieces vary, the per-100 g figure is the one to use when comparing this against a food measured a different way.
Gelatin and collagen are incomplete proteins - they contain essentially no tryptophan, so they cannot stand in for a complete protein source.
Source: USDA FoodData Central #169599 - "Gelatins, dry powder, unsweetened" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Gelatin powder protein FAQ
How much protein is in gelatin powder per 100 g?
Gelatin powder has 85.6 g of protein per 100 g. A typical 1 envelope serving (7 g) provides 6 g.
Is gelatin powder a complete protein?
No. Gelatin powder is an incomplete protein on its own; pairing it with other protein sources across the day covers the full range of essential amino acids.
How much of the Daily Value does a serving of gelatin powder cover?
A 1 envelope serving of gelatin powder contains 6 g of protein, about 12% of the 50 g reference Daily Value.
Is gelatin powder a good source of protein?
Gelatin powder is a moderate source of protein, and about 102% of its calories come from protein, which makes it extremely protein-dense. Set against meal replacement bar, another protein supplement entry in the database, a serving carries about 1.6 g less protein (meal replacement bar has 7.6 g per 1 bar).