A typical 1 oz serving of dried egg yolk contains 9.7 grams of protein (34.2 g per 100 g), which makes it a good source of protein. That covers roughly 19% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 21% of the calories in dried egg yolk 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 20 eggs in the database, dried egg yolk ranks 5th by protein per serving, and 313th out of all 796 foods on the site. Set against duck egg, another egg entry in the database, a serving carries about 0.7 g more protein (duck egg has 9 g per 1 egg).
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 28.4 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #329716 - "Egg, yolk, dried" (Foundation, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Dried egg yolk protein FAQ
How much protein is in dried egg yolk per 100 g?
Dried egg yolk has 34.2 g of protein per 100 g. A typical 1 oz serving (28.4 g) provides 9.7 g.
Is dried egg yolk a complete protein?
Yes. Dried egg yolk 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 dried egg yolk cover?
A 1 oz serving of dried egg yolk contains 9.7 g of protein, about 19% of the 50 g reference Daily Value.
Is dried egg yolk a good source of protein?
Dried egg yolk is a good source of protein, and about 21% of its calories come from protein, which makes it moderately protein-dense. Set against duck egg, another egg entry in the database, a serving carries about 0.7 g more protein (duck egg has 9 g per 1 egg).