A typical 1 oz serving of brie cheese contains 5.8 grams of protein (20.8 g per 100 g), which makes it a moderate source of protein. That covers roughly 12% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 25% of the calories in brie cheese 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 81 dairy foods in the database, brie cheese ranks 61st by protein per serving, and 444th out of all 796 foods on the site. Set against frozen yogurt, another dairy food entry in the database, a serving carries about 1.2 g less protein (frozen yogurt has 7 g per 1 cup).
It is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own. The serving above is measured by weight at 28 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Soft ripened cheeses hold more water, so they are lower in protein per ounce than hard cheeses.
Source: USDA FoodData Central #172177 - "Cheese, brie" (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
Brie cheese protein FAQ
How much protein is in brie cheese per 100 g?
Brie cheese has 20.8 g of protein per 100 g. A typical 1 oz serving (28 g) provides 5.8 g.
Is brie cheese a complete protein?
Yes. Brie cheese is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
How much of the Daily Value does a serving of brie cheese cover?
A 1 oz serving of brie cheese contains 5.8 g of protein, about 12% of the 50 g reference Daily Value.
Is brie cheese a good source of protein?
Brie cheese is a moderate source of protein, and about 25% of its calories come from protein, which makes it moderately protein-dense. Set against frozen yogurt, another dairy food entry in the database, a serving carries about 1.2 g less protein (frozen yogurt has 7 g per 1 cup).