Skyr is a thick cultured dairy product that is usually high in protein. The calories in skyr depend on the exact product: plain low-fat or fat-free versions are often relatively low in calories, while flavored or higher-fat versions can contain more.
A useful starting point for plain skyr is around 60 kcal per 100 g, but the label on your specific product should be your primary source when tracking.
Skyr calories by portion
Using 61 kcal per 100 g as a practical example for plain fat-free skyr:
| Amount of skyr | Approx. calories | Approx. protein |
|---|---|---|
| 50 g | 31 kcal | 5 g |
| 100 g | 61 kcal | 10 g |
| 150 g | 92 kcal | 15 g |
| 200 g | 122 kcal | 20 g |
| 250 g | 153 kcal | 25 g |
| 450 g | 275 kcal | 45 g |
These are example calculations, not universal values. The 61 kcal and 10 g protein per 100 g used here are illustrative values, not a statement about the current label of a particular brand. Different brands and varieties can differ.
The calculation is simple:
Calories in your portion = calories per 100 g × portion weight ÷ 100
For example, if your skyr contains 61 kcal per 100 g and you eat 180 g:
61 × 180 ÷ 100 = about 110 kcal.
Plain, flavored and creamy skyr are not nutritionally identical
The word “skyr” alone is not enough to determine the calorie content.
A current product range illustrates the difference:
| Type | Example calories per 100 g | Example protein per 100 g | Why it differs |
|---|---|---|---|
| Plain fat-free skyr | 61 kcal | 10 g | Mainly skimmed-milk skyr |
| Strawberry skyr | 70 kcal | 8.8 g | Fruit and added ingredients |
| Vanilla skyr | 72 kcal | 8.6 g | Sugar and flavoring ingredients |
| Creamy 5% fat skyr | 99 kcal | 9 g | Higher fat content |
The exact numbers are product-specific. They show why using a generic “skyr” database entry can produce the wrong result when your actual product is flavored or higher in fat.
What is typically in plain skyr?
Traditional-style plain skyr is made from milk and cultures and has a thick texture created by fermentation and concentration.
Commercial products vary, but plain skyr is often:
- high in protein
- relatively low in fat when made from skimmed milk
- a source of naturally occurring milk sugar
- more concentrated in protein than many ordinary yogurts
Current commercial examples commonly provide roughly 9–11 g of protein per 100 g, although the exact amount depends on the product.
Does flavored skyr have more calories?
Often, but not always.
Flavored varieties may include fruit, sugar, syrup, starch or other ingredients. Those additions can increase carbohydrate and calorie content.
For example, a plain product may be close to 60 kcal per 100 g while flavored examples from the same range are around 70–76 kcal per 100 g.
That difference may look small per 100 g but becomes larger with bigger portions.
If a flavored skyr contains 72 kcal per 100 g:
- 150 g provides about 108 kcal
- 200 g provides about 144 kcal
- 250 g provides about 180 kcal
This is why the exact label matters more than a generic estimate.
Does fat content matter?
Yes.
Fat contributes about 9 kcal per gram, so a creamy skyr made with more fat can have substantially more calories than a fat-free version.
A current 5% fat example contains about 99 kcal per 100 g compared with 61 kcal per 100 g for a plain fat-free version from the same range.
That does not make the higher-fat product inherently “bad.” It simply means the two products should not be logged as though they were nutritionally identical.
A 200 g portion can mean very different calorie totals
Consider three hypothetical 200 g portions based on current product-label examples:
- plain fat-free skyr at 61 kcal/100 g → 122 kcal
- flavored skyr at 72 kcal/100 g → 144 kcal
- creamy 5% skyr at 99 kcal/100 g → 198 kcal
All three portions weigh exactly the same.
The difference comes from the product formulation, not the serving weight.
For calorie tracking, identify the variety first and the portion second.
Protein in a typical serving
One reason skyr is popular is its relatively high protein concentration.
If a plain skyr provides 10 g protein per 100 g:
- 150 g provides about 15 g protein
- 200 g provides about 20 g protein
- 250 g provides about 25 g protein
Protein values differ between products, particularly flavored varieties.
If protein intake matters to you, use the protein value printed on your own product rather than assuming every skyr contains exactly the same amount.
How much is a normal portion of skyr?
There is no single required serving size.
A realistic amount depends on whether skyr is being used as:
- a small snack
- part of breakfast
- a dessert
- an ingredient in a recipe
- a higher-protein component of a larger meal
For tracking purposes, the most useful serving size is the amount you actually eat.
A suggested serving on a package is not necessarily your personal portion.
How to track skyr accurately
For a single-serving container, you can often use the package weight if you eat the entire contents.
For a larger tub, weighing the amount is more accurate:
- place your bowl or container on a kitchen scale
- tare the scale
- add the skyr
- note the weight in grams
- use the nutrition information for the exact product
If the package provides values per 100 g, calculate your portion from that figure.
In the EU, packaged foods generally provide energy and key nutrient information per 100 g or 100 ml, which makes products easier to compare.
What if you do not weigh it?
You can still estimate, but the uncertainty increases.
Skyr is thick, so visual volume can be difficult to translate into grams. A heaped spoonful is not a standardized unit, and different spoons hold different amounts.
For occasional tracking, an approximate portion may be sufficient.
If you are trying to understand why your daily calorie totals vary, weighing a few typical portions can help you learn what your usual serving looks like.
The container size is not the serving size
A 450 g tub does not mean that 450 g is a standard serving.
Large containers are designed for multiple uses, but someone can also eat more or less depending on context.
If a 450 g tub of plain skyr contains 61 kcal per 100 g, the entire tub would provide about 275 kcal.
That calculation is useful if you eat the full container, but it should not automatically be used for a smaller portion.
Toppings can change the meal more than the skyr itself
Suppose you start with 200 g of plain skyr at about 122 kcal.
The final meal may be much higher in calories after adding:
- granola
- nuts
- nut butter
- honey
- seeds
- dried fruit
- chocolate
These foods can absolutely fit into a balanced diet, but they should be tracked separately when calorie accuracy matters.
This is particularly relevant with granola because it is often much more calorie-dense than plain skyr.
See Oats vs Granola: Nutrition and Calories Compared.
Skyr vs Greek yogurt
Skyr and Greek yogurt are both thick cultured dairy foods, but their nutrition depends on the specific products.
Skyr is often made from skimmed milk and tends to be high in protein. Greek yogurt is available in fat-free, low-fat and full-fat versions, so its calorie content can vary considerably.
Instead of assuming one category always has fewer calories or more protein, compare:
- calories per 100 g
- protein per 100 g
- fat
- sugar
- ingredients
- your actual portion
For a direct comparison of related dairy products, see Greek Yogurt vs Skyr: Nutrition and Protein Compared.
You can also see Calories in Greek Yogurt: Nutrition, Portions and Common Serving Sizes.
Is skyr low in calories?
Many plain fat-free skyr products are relatively low in calories for the amount of protein they provide.
But “skyr” is a category, not one fixed nutritional value.
A creamy higher-fat skyr or a sweetened flavored variety may provide considerably more calories than a plain fat-free version.
The most reliable approach is to check the product label.
Is skyr good for weight loss?
Skyr can fit into a weight-loss diet, but no individual food causes weight loss.
A plain high-protein skyr may be convenient when you want a protein-rich food with a moderate calorie content. Whether it helps in practice depends on your overall diet, total energy intake, portion sizes and preferences.
If you add calorie-dense toppings, include them in the total rather than evaluating the skyr alone.
Practical tracking example
Imagine you prepare:
- 180 g plain skyr
- 25 g granola
- fruit
Your skyr label says 61 kcal per 100 g.
The skyr contributes:
61 × 180 ÷ 100 = about 110 kcal.
You would then calculate the granola and fruit separately using their own weights and nutrition information.
This is more accurate than searching for a generic database entry such as “skyr with granola and fruit,” because your ingredients and portions may be very different from the database example.
What number should you use in Mealisa?
When the exact product is known, use its nutrition label.
If you only know that the food is plain skyr and no label is available, a generic estimate can be useful, but it should remain an estimate.
When Mealisa identifies food from a photo, portion size and exact product formulation can introduce uncertainty. Correcting the food type or amount when you know it will usually be more reliable than treating an AI estimate as exact.
For more on this workflow, see How to Correct an AI Food Estimate.
Key numbers to remember
For a plain fat-free skyr similar to the example used in this guide:
- 100 g: about 61 kcal and 10 g protein
- 150 g: about 92 kcal and 15 g protein
- 200 g: about 122 kcal and 20 g protein
- 250 g: about 153 kcal and 25 g protein
Use these as orientation only.
For accurate tracking, the nutrition label on your actual skyr should take priority because flavored, sweetened and higher-fat products can differ substantially.
This article provides general educational nutrition information and is not individualized medical or dietary advice.
Nutrition data sources and product differences
The records below describe only the named foods, fat levels and preparation states. USDA figures are per 100 g; manufacturer figures retain their stated unit. These sources do not independently prove every approximate figure in the article.
The values in the article are illustrative, not exact Arla product labels. Current Arla labels show 60 kcal (plain), 68 kcal (strawberry), 71 kcal (vanilla) and 99 kcal (extra creamy) per 100 g.
Examples from manufacturer labels (product-specific, checked 16 October 2026):
- Arla Skyr Natur 1 kg — 60 kcal/100 g.
- Arla Skyr Erdbeere 450 g — 68 kcal/100 g.
- Arla Skyr Vanille 450 g — 71 kcal/100 g.
- Arla Skyr Extra Cremig 400 g — 99 kcal/100 g.