A typical 1/4 cup serving of cottonseed flour contains 9.6 grams of protein (41 g per 100 g), which makes it a good source of protein. That covers roughly 19% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Protein accounts for roughly 46% of the calories in cottonseed flour, making it very protein-dense. The rest comes from fat and carbohydrate, so it adds a solid amount of protein while still carrying real energy - useful when you are eating to a calorie target rather than under one.
Among the 27 seeds in the database, cottonseed flour ranks 2nd by protein per serving, and 318th out of all 796 foods on the site. Set against hemp seeds, another seed entry in the database, a serving carries about 0.8 g more protein (hemp seeds has 8.8 g per 1 oz).
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 23.5 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #170555 - "Seeds, cottonseed flour, partially defatted (glandless)" (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
Cottonseed flour protein FAQ
How much protein is in cottonseed flour per 100 g?
Cottonseed flour has 41 g of protein per 100 g. A typical 1/4 cup serving (23.5 g) provides 9.6 g.
Is cottonseed flour a complete protein?
No. Cottonseed flour 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 cottonseed flour cover?
A 1/4 cup serving of cottonseed flour contains 9.6 g of protein, about 19% of the 50 g reference Daily Value.
Is cottonseed flour a good source of protein?
Cottonseed flour is a good source of protein, and about 46% of its calories come from protein, which makes it very protein-dense. Set against hemp seeds, another seed entry in the database, a serving carries about 0.8 g more protein (hemp seeds has 8.8 g per 1 oz).