Skyr contains up to eleven grams of protein per 100 grams of skyr. Skyr contains four times as much skimmed milk as a conventional yogurt.

The high protein content ensures that blood sugar does not rise sharply due to the low glycemic index of protein. This avoids cravings and creates a longer-term feeling of satiety. Calcium in the body is important for stable bones, which is why the health information service recommends 700 to 1,200 milligrams as a daily dose. The most important advantage for people who want to lose weight is the fat content.