A typical 1 cup cooked serving of quinoa contains 8.1 grams of protein (4.4 g per 100 g), which makes it a good source of protein. That covers roughly 16% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 15% of the calories in quinoa come from protein, so it is more of an energy food than a protein food. It contributes to a day's protein total, but the bulk of what it delivers is energy rather than amino acids - treat it as a contributor alongside a denser source, not as the protein in a meal.
Among the 111 grains in the database, quinoa ranks 14th by protein per serving, and 347th out of all 796 foods on the site. Set against chapati, another grain entry in the database, a serving carries about 0.5 g more protein (chapati has 7.6 g per 1 piece).
It is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own. The serving above is measured by volume at 185 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
A rare grain-like seed that is a complete protein.
Source: USDA FoodData Central #168917 - "Quinoa, cooked" (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
Quinoa protein FAQ
How much protein is in quinoa per 100 g?
Quinoa has 4.4 g of protein per 100 g. A typical 1 cup cooked serving (185 g) provides 8.1 g.
Is quinoa a complete protein?
Yes. Quinoa is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
How much of the Daily Value does a serving of quinoa cover?
A 1 cup cooked serving of quinoa contains 8.1 g of protein, about 16% of the 50 g reference Daily Value.
Is quinoa a good source of protein?
Quinoa is a good source of protein, and about 15% of its calories come from protein, which makes it more of an energy food than a protein food. Set against chapati, another grain entry in the database, a serving carries about 0.5 g more protein (chapati has 7.6 g per 1 piece).