A typical 1 cup serving of muesli contains 9.2 grams of protein (11.2 g per 100 g), which makes it a good source of protein. That covers roughly 18% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 13% of the calories in muesli 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, muesli ranks 10th by protein per serving, and 322nd out of all 796 foods on the site. Set against naan, another grain entry in the database, a serving carries about 0.5 g more protein (naan has 8.7 g per 1 piece).
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 82.1 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Untoasted oats mixed with dried fruit and nuts.
Source: USDA FoodData Central #169075 - "Cereals ready-to-eat, ALPEN" (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
Muesli protein FAQ
How much protein is in muesli per 100 g?
Muesli has 11.2 g of protein per 100 g. A typical 1 cup serving (82.1 g) provides 9.2 g.
Is muesli a complete protein?
No. Muesli 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 muesli cover?
A 1 cup serving of muesli contains 9.2 g of protein, about 18% of the 50 g reference Daily Value.
Is muesli a good source of protein?
Muesli is a good source of protein, and about 13% of its calories come from protein, which makes it more of an energy food than a protein food. Set against naan, another grain entry in the database, a serving carries about 0.5 g more protein (naan has 8.7 g per 1 piece).