Skyr vs Greek Yogurt: What's the Difference?

Skyr and Greek yogurt sit side by side in the fridge, look almost identical, and both promise a protein hit. So what actually separates them, and can you swap one for the other? Here is the straightforward answer, with the real numbers.

The short answerSkyr and Greek yogurt are very similar high-protein dairy foods and you can substitute one for the other freely. Skyr is technically a fresh cheese and is marginally higher in protein (around 11g vs 10g per 100g) and calcium (around 150mg vs 110mg). For most people, the best choice is simply whichever you prefer.

What is the actual difference?

The difference is mostly in how they are made:

  • Skyr is a traditional Icelandic product, made more like a soft fresh cheese. Milk is cultured, then strained to remove whey, leaving a thick, mild result.
  • Greek yogurt is yogurt that has been strained to remove whey, giving that same thick texture.

In other words, skyr is technically a cheese and Greek yogurt is a yogurt, but in taste, texture and everyday use they are almost the same. That is why they are so easily confused.

The numbers: skyr vs Greek yogurt

Here is how the plain, fat-free versions compare per 100g:

Per 100gSkyrGreek yogurt (0% fat)
Protein~11g~10g
Calories~63~59
Calcium~150mg~110mg
FatVery lowVery low

As you can see, the differences are small. Skyr edges ahead slightly on protein and calcium, but both are excellent, lean, high-protein choices. You can compare them side by side on our Greek yogurt vs skyr comparison.

Can you substitute one for the other?

Yes, freely. In smoothies, breakfast bowls, dips, sauces, baking and as a topping, skyr and Greek yogurt work the same way. Their similar thickness, protein and fat mean you can swap them one for one without changing your recipe.

This is the most common question about these two, and the answer is simple: use whichever you have. The small nutritional differences will not noticeably affect a recipe.

Which should you choose?

Since they are so similar, base your choice on practical things:

  • Choose skyr for a slightly higher protein and calcium hit, if you can find it.
  • Choose Greek yogurt for wider availability and more flavour varieties.
  • Either way, go plain. Flavoured versions of both can carry a lot of added sugar. Add your own fruit or a drizzle of honey instead.

Both are brilliant building blocks for a high-protein diet. Work out your daily protein target with our protein calculator, then see our high-protein foods list for more ways to hit it.

The bottom line

Skyr and Greek yogurt are close cousins: both thick, both high in protein, both low in fat. Skyr is marginally higher in protein and calcium, but the difference is small enough that the “best” one is whichever you enjoy and will eat regularly. And yes, you can always swap one for the other. For a full side-by-side, see our Greek yogurt vs skyr comparison, or read more on skyr nutrition if you want the full protein and calcium breakdown.

This article is for general information and is not medical or nutritional advice. Speak to a qualified professional about your individual needs.

Frequently asked questions

Can you substitute skyr for Greek yogurt?

Yes. You can substitute skyr for Greek yogurt, and the other way round, in almost any recipe or meal. They have a very similar thick texture and high protein content, so they behave the same in smoothies, bowls, baking, dips and as a topping. Skyr is slightly higher in protein and calcium, but the difference is small enough to swap freely.

Is skyr the same as Greek yogurt?

Not exactly, but they are very similar. Skyr is a traditional Icelandic cultured dairy product made more like a soft fresh cheese, while Greek yogurt is strained yogurt. They share almost the same texture, protein content and everyday uses, which is why they are so often confused and used interchangeably.

Does skyr have calcium?

Yes. Plain skyr is a good source of calcium, providing around 150 mg per 100 g. That is slightly more than fat-free Greek yogurt, which has around 110 mg per 100 g. Both contribute usefully to your daily calcium intake.

Is skyr or Greek yogurt higher in protein?

They are very close, but skyr is often marginally higher. In their plain, fat-free forms, skyr provides around 11 g of protein per 100 g and Greek yogurt around 10 g. Both are excellent high-protein dairy choices.

Which is better for weight loss?

Both are excellent for weight loss thanks to their high protein and low fat, which help control appetite. The choice barely matters nutritionally, so pick whichever you prefer and will eat regularly. Always choose plain versions to avoid the added sugar in flavoured ones.

How much calcium is in skyr compared to Greek yogurt?

Plain skyr provides around 150 mg of calcium per 100 g, while fat-free Greek yogurt provides around 110 mg per 100 g. Skyr has a small edge, but both are good sources as part of a balanced diet.

Can you use skyr instead of Greek yogurt in baking?

Yes. Skyr works well in place of Greek yogurt in baking, adding moisture and protein to muffins, pancakes and cakes. Because both are thick and similar in fat and protein, the results are almost identical.

welanutria provides general information and estimates only, and is not medical or dietary advice. Speak with a qualified professional before making significant changes to your diet, exercise or health routine.