A typical 1 cup cooked serving of spinach spaghetti contains 6.4 grams of protein (4.58 g per 100 g), which makes it a moderate source of protein. That covers roughly 13% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 14% of the calories in spinach spaghetti 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, spinach spaghetti ranks 24th by protein per serving, and 414th out of all 796 foods on the site. Set against french bread, another grain entry in the database, a serving carries about 0.5 g less protein (french bread has 6.9 g per 1 medium slice).
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 140 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #168912 - "Spaghetti, spinach, 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
Spinach spaghetti protein FAQ
How much protein is in spinach spaghetti per 100 g?
Spinach spaghetti has 4.58 g of protein per 100 g. A typical 1 cup cooked serving (140 g) provides 6.4 g.
Is spinach spaghetti a complete protein?
No. Spinach spaghetti 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 spinach spaghetti cover?
A 1 cup cooked serving of spinach spaghetti contains 6.4 g of protein, about 13% of the 50 g reference Daily Value.
Is spinach spaghetti a good source of protein?
Spinach spaghetti is a moderate source of protein, and about 14% of its calories come from protein, which makes it more of an energy food than a protein food. Set against french bread, another grain entry in the database, a serving carries about 0.5 g less protein (french bread has 6.9 g per 1 medium slice).