A typical 1 cup serving of sweet potato fries contains 1.4 grams of protein (2.27 g per 100 g), which makes it only a minor source of protein. That covers roughly 3% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Only about 5% of the calories in sweet potato fries come from protein, so it is more of an energy food than a protein food. It is worth eating for other reasons; the protein it adds to a day is incidental.
Among the 105 vegetables in the database, sweet potato fries ranks 69th by protein per serving, and 697th out of all 796 foods on the site. Set against cabbage, another vegetable entry in the database, a serving carries about 0.5 g less protein (cabbage has 1.9 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 60 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #2709711 - "Sweet potato fries, frozen" (Survey (FNDDS), published 10/31/2024). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Sweet potato fries protein FAQ
How much protein is in sweet potato fries per 100 g?
Sweet potato fries has 2.27 g of protein per 100 g. A typical 1 cup serving (60 g) provides 1.4 g.
Is sweet potato fries a complete protein?
No. Sweet potato fries 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 sweet potato fries cover?
A 1 cup serving of sweet potato fries contains 1.4 g of protein, about 3% of the 50 g reference Daily Value.
Is sweet potato fries a good source of protein?
Sweet potato fries is only a minor source of protein, and about 5% of its calories come from protein, which makes it more of an energy food than a protein food. Set against cabbage, another vegetable entry in the database, a serving carries about 0.5 g less protein (cabbage has 1.9 g per 1 cup cooked).