Dairy
Skyr
Skyr provides 11.3 g of protein for 60 kcal per 100 g (3.5 oz), or 18.8 g of protein for every 100 kcal.
Estimated satietyHow it is calculated
Estimated satiety: 5 out of 5
| Starting point | +1 |
|---|---|
| Very low energy density: 60 kcal/100 g | +2 |
| Protein: 18.8 g/100 kcal | +2 |
| Fiber: 0.0 g/100 kcal | 0 |
| Water: not declared on the source label | 0 |
Our own estimate from the values per 100 g: useful for comparing foods with each other, not a measurement in people. Holt index (1995): this food was not measured.
- Prepared by
- Alex Gonzalez
- Last updated
- Next review
- Sources
- 3 primary
- Data
- USDA FDC 2400949
No clinical review. No advertising from drug companies and no affiliate links.How we work
Nutrition facts
- Calories
- 90 kcal per serving
- 60 kcal per 100 g (3.5 oz)
- Protein
- 17 g per serving
- 11.3 g per 100 g (3.5 oz)
- Carbohydrates
- 6 g per serving
- 4 g per 100 g (3.5 oz)
- of which sugars
- 5 g per serving
- 3.3 g per 100 g (3.5 oz)
- Fiber
- 0 g per serving
- 0 g per 100 g (3.5 oz)
- Fat
- 0 g per serving
- 0 g per 100 g (3.5 oz)
- of which saturated
- 0 g per serving
- 0 g per 100 g (3.5 oz)
- Water
- no data per serving
- no data per 100 g (3.5 oz)
Source: USDA FoodData Central (Branded Foods): Plain Icelandic skyr strained nonfat yogurt, plain (FDC ID 2400949), accessed September 23, 2026.
A typical 150 g (5.5 oz) serving provides about 90 kcal, 17 g of protein, and 0 g of fiber.
What it is and how to eat it
Skyr is a fermented, strained dairy food from Iceland, made with skim milk and sold as Icelandic or Icelandic-style yogurt. Straining removes whey and concentrates the protein, so it is thick and almost fat-free. Nutritionally it is very close to nonfat Greek yogurt.
A 150 g (5.3 oz) cup provides about 17 g of protein for 90 kcal. If your appetite is small, half a cup with fruit still gives about 8.5 g of protein. The 2025 nutrition advisory on GLP-1 therapy suggests eating protein-rich foods first, and skyr makes that easy because it is eaten cold with no preparation. Flavored versions usually contain added sugar, so check the label.
What the evidence says
Protein supplies three quarters of its calories, far above the 20% the EU requires for a "high protein" claim (Regulation (EC) No 1924/2006). That makes it useful for reaching your daily protein, but I have not found skyr trials showing effects on weight or fullness beyond those of other strained dairy with the same protein. The values come from one product's label in the USDA database and vary somewhat between brands.
Satiety
The 1 to 5 score is our own estimate: it starts at 1 point, adds points for low energy density, for protein and fiber per 100 kcal, and for the water in solid foods, and subtracts points for drinks with calories. It is useful for comparing foods with each other; it is not a measurement in people.
What to keep in mind on a GLP-1 medication
Frequently asked questions about skyr
How many grams of protein are in a 150 g (5.5 oz) serving of skyr?
100 g (3.5 oz) of skyr has 11.3 g of protein. A typical 150 g (5.5 oz) serving has about 17 g of protein. That is 18.8 g of protein per 100 kcal, which is why it carries our “High in protein” tag.
How many kcal are in a 150 g (5.5 oz) serving of skyr?
100 g (3.5 oz) of skyr has 60 kcal. A typical 150 g (5.5 oz) serving has about 90 kcal. That is a very low energy density.
Does skyr keep you full?
Yes, very filling for the calories it provides: our estimated satiety score is 5 out of 5. It is based on: our rule adds points for low energy density, for protein and fiber per 100 kcal, and for water in solid foods, and subtracts points for drinks with calories. It is an estimate based on its composition, not a measurement in people.
What should I know about skyr if I take Ozempic, Wegovy, Mounjaro, or Zepbound and feel nauseous?
Based on our tags, this is what matters about skyr on a GLP-1 medication. “High in protein”: plenty of protein per calorie; protein helps preserve muscle mass when you eat less. “Easy to digest”: a soft or low-fat food that many people tolerate well when they feel nauseous or get full quickly. “Nutritious in small servings”: a lot of nutrition in a small volume, which is practical when you eat little. “Low energy density”: plenty of volume for few calories; make sure it does not push protein foods off your plate. These are general guidelines, not medical advice: everyone tolerates foods differently.
What is a typical serving of skyr?
We use 150 g (5.5 oz) as a typical serving. That amount provides about 90 kcal, 17 g of protein, and 0 g of fiber. It is a reference for calculations, not a recommendation of how much to eat.
Compare with…
Similar foods
Sources
Sources for the data on this page, with the access date.
- Official databaseU.S. Department of Agriculture, Agricultural Research Service.USDA FoodData Central (Branded Foods): Plain Icelandic skyr strained nonfat yogurt, plain (FDC ID 2400949).accessed .
- Clinical guidelineObesity (Wiley).Mozaffarian D, et al. Nutritional priorities to support GLP-1 therapy for obesity: A joint Advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity Society. Obesity. 2025;33(8):1475-1503. doi:10.1002/oby.24336.accessed .
- RegulatorOfficial Journal of the European Union (EUR-Lex).Regulation (EC) No 1924/2006 on nutrition and health claims made on foods (Annex).accessed .