A typical 1 cup cooked serving of adzuki beans contains 17.3 grams of protein (7.52 g per 100 g), which makes it a very good source of protein. That covers roughly 35% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
Around 24% of the calories in adzuki beans come from protein, so it is moderately protein-dense. 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 54 legumes in the database, adzuki beans ranks 6th by protein per serving, and 201st out of all 796 foods on the site. Set against lentils, another legume entry in the database, a serving carries about 0.6 g less protein (lentils has 17.9 g per 1 cup cooked).
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 measured by volume at 230 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #173728 - "Beans, adzuki, mature seeds, cooked, boiled, without salt" (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
Adzuki beans protein FAQ
How much protein is in adzuki beans per 100 g?
Adzuki beans has 7.52 g of protein per 100 g. A typical 1 cup cooked serving (230 g) provides 17.3 g.
Is adzuki beans a complete protein?
No. Adzuki beans 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 adzuki beans cover?
A 1 cup cooked serving of adzuki beans contains 17.3 g of protein, about 35% of the 50 g reference Daily Value.
Is adzuki beans a good source of protein?
Adzuki beans is a very good source of protein, and about 24% of its calories come from protein, which makes it moderately protein-dense. Set against lentils, another legume entry in the database, a serving carries about 0.6 g less protein (lentils has 17.9 g per 1 cup cooked).