A typical 1 slice serving of italian bread contains 2.8 grams of protein (9.49 g per 100 g), which makes it only a minor source of protein. That covers roughly 6% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 15% of the calories in italian bread 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, italian bread ranks 86th by protein per serving, and 602nd out of all 796 foods on the site. Set against cream of rice, another grain entry in the database, a serving carries about 0.6 g more protein (cream of rice has 2.2 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 counted by piece at 29 g. Because pieces vary, the per-100 g figure is the one to use when comparing this against a food measured a different way.
Source: USDA FoodData Central #174913 - "Bread, Italian" (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
Italian bread protein FAQ
How much protein is in italian bread per 100 g?
Italian bread has 9.49 g of protein per 100 g. A typical 1 slice serving (29 g) provides 2.8 g.
Is italian bread a complete protein?
No. Italian bread 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 italian bread cover?
A 1 slice serving of italian bread contains 2.8 g of protein, about 6% of the 50 g reference Daily Value.
Is italian bread a good source of protein?
Italian bread is only a minor 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 cream of rice, another grain entry in the database, a serving carries about 0.6 g more protein (cream of rice has 2.2 g per 1 cup cooked).