Skyr vs. Greek yogurt: Which is better for you?

Walk down the yogurt aisle today and you’ll find two dairy products that seem to promise the same thing: more protein, less sugar, and a filling snack that can fit into almost any eating pattern.

Greek yogurt got there first. Once a niche product in the U.S., it exploded in popularity during the 2000s as people began looking for foods with more protein and less added sugar than traditional yogurts. 

More recently, skyr (pronounced skeer), a thick Icelandic cultured dairy product, has followed a similar path. Although Icelanders have eaten skyr for centuries, most Americans didn’t begin seeing it on grocery shelves until the mid-2000s, when it was introduced as part of a broader push to bring Icelandic foods to the U.S. Today, it’s riding the same high-protein trend that’s also boosted foods like cottage cheese and kefir.

It’s easy to see why they’re often compared. Both are thick, cultured dairy products that are naturally high in protein, relatively low in sugar, and versatile enough to work for breakfast, snacks, or even savory recipes.

Greek yogurt has a lot in common, but there are some subtle differences that may make one a better fit depending on your nutrition goals, taste preferences, and how you like to eat. It’s worth looking beyond the front of the package to understand what sets them apart. Let’s take a closer look at how they compare.

Skyr vs. Greek yogurt: What’s the difference?

At first glance, skyr and Greek yogurt look almost identical. Both are thick, creamy, high in protein, and sold right next to each other in the dairy aisle.

But despite their similarities, they’re not exactly the same. Greek yogurt refers to yogurt that’s been strained to remove much of its whey, creating a thicker texture. Skyr also goes through a straining process, but it’s traditionally made with a small amount of rennet, which technically makes it a fresh cheese—even though it’s marketed and eaten like yogurt. 

So what does all of that actually mean when you’re deciding which one to buy?

How skyr and Greek yogurt are similar

• Both contain live cultures. Greek yogurt and skyr are made by fermenting milk with many of the same beneficial bacterial cultures.
• Both are strained. Removing whey gives both products their thick texture while concentrating protein. 
• Both are nutrient-dense. Skyr and Greek yogurt are excellent sources of protein and also provide nutrients like calcium, along with live cultures that make them popular choices for high-protein breakfasts and snacks.

How skyr and Greek yogurt are different

• What they technically are. Greek yogurt is a strained yogurt. Traditional skyr is made with skim milk and a small amount of rennet, so dairy scientists classify it as a fresh acid-curd cheese rather than a true yogurt—even though most people use it exactly like yogurt.
• Where they come from. Skyr originated in Iceland more than a millennium ago and has remained a staple of Icelandic cuisine ever since. Greek yogurt is inspired by traditional strained yogurts from the eastern Mediterranean, but most Greek yogurt sold in the U.S. is now made from cow’s milk.
• How much milk they use. Traditional skyr is strained more extensively than Greek yogurt, requiring more milk to produce the same amount of finished product. That helps explain why some skyr products contain slightly more protein per serving. 

Skyr vs. Greek yogurt: Nutrition comparison

At a glance, skyr and Greek yogurt have a lot in common. Both are high in protein, relatively low in calories, and contain little or no fat when you choose nonfat, plain varieties. Skyr typically contains a few more grams of protein per serving, while the differences in calories, carbohydrates, and sugar are small.

Nutrient (150 g serving)	Skyr, plain, nonfat	Greek yogurt, plain, nonfat
Calories	100	89
Protein	19 g	15 g
Total fat	0 g	0.6 g
Saturated fat	0 g	0.3–0.4 g
Monounsaturated fat	0 g	Trace
Polyunsaturated fat	0 g	Trace
Cholesterol	5–10 mg	5–10 mg
Carbohydrates	7 g	5.4 g
Total sugars	5 g	4.9 g
Fiber	0 g	0 g
Calcium	180–220 mg*	170–190 mg
Sodium	50–70 mg	50–60 mg
Potassium	220–260 mg	200–240 mg
Vitamin B12	Small amount	Small amount
Riboflavin (B2)	Good source	Good source
Probiotics	Yes	Yes

¹ USDA FoodData Central, branded skyr products. ² USDA FoodData Central, generic plain nonfat Greek yogurt.

The biggest nutritional difference is protein. Skyr typically contains a few more grams per serving because it’s strained more extensively during production. Otherwise, the two are remarkably similar. Both are naturally low in sugar, contain no added sugar when you choose plain varieties, and provide calcium, B vitamins, and live cultures. In practice, the nutrition differences are often smaller than the differences between brands—or between plain and flavored versions.

Health benefits: Skyr vs. Greek yogurt

Skyr and Greek yogurt have very similar nutrition profiles, so it’s not surprising that they also share many of the same health benefits. While most studies look at yogurt or fermented dairy as a whole rather than skyr specifically, the research suggests both can support a healthy diet in several ways.

Protein and satiety

Both skyr and Greek yogurt are rich in protein, which can help you feel fuller after eating. Research has found that high-protein yogurt increases feelings of fullness and may delay hunger compared with lower-protein or higher-fat snacks. Other studies suggest there’s a point of diminishing returns, though — once a yogurt contains a moderate amount of protein, adding several more grams may not noticeably increase fullness, per a study in Nutrition Journal comparing lower- and higher-protein yogurt. Skyr’s slight protein advantage may help some people feel satisfied, but both are filling choices compared with many common snack foods.

Bone health

Because they’re rich in calcium and protein, both skyr and Greek yogurt can help support bone health, but they’re just one part of an overall bone-healthy eating pattern. Large studies have linked higher yogurt intake with greater bone mineral density and a lower risk of osteoporosis, particularly in older adults. Another study found a similar link with milk and yogurt intake together. But reviews that combine multiple studies suggest those benefits are modest, and there’s no strong evidence that eating yogurt alone prevents fractures. 

Gut health

The gut-health benefits are promising, but more research is needed to know whether one has an advantage over the other. Both foods contain live bacterial cultures that may support a healthy gut microbiome. Reviews of fermented dairy have found consistent changes in gut bacteria after regular yogurt consumption, although researchers still don’t fully understand how those changes affect long-term health. Importantly, most studies have looked at yogurt in general rather than Greek yogurt or skyr specifically.

Digestion and lactose

Neither product is lactose-free, but both may be easier to digest than milk for people with mild lactose intolerance. Many people with lactose intolerance tolerate skyr and Greek yogurt better than milk. Fermentation breaks down some of the lactose naturally, with lactic acid bacteria reducing lactose content by an estimated 20 to 40% during fermentation. Live bacterial cultures may continue helping digest lactose after you eat them.

Can skyr or Greek yogurt help with weight loss?

Both skyr and Greek yogurt can fit into a weight loss plan, but neither is a weight loss food on its own. Their biggest advantage is that they’re high in protein for relatively few calories, a combination that can help you feel fuller and make it easier to stick to your eating plan over time.

Research suggests people who eat yogurt regularly tend to have lower body weight, smaller waist circumferences, and gain less weight over time. Scientists think several factors may contribute, including increased fullness, replacement of less nutritious snacks, and changes in gut hormones and the gut microbiome. But most of this research shows an association rather than proving that yogurt itself causes weight loss.  

If you’re choosing between the two, skyr’s slightly higher protein content may offer a small advantage for fullness, but the difference is modest. For most people, choosing a plain variety with little or no added sugar—and finding one you genuinely enjoy eating—is likely to matter more than whether you pick skyr or Greek yogurt.

If you want to go deeper on either specific angle, Noom has dedicated breakdowns of skyr for weight loss and Greek yogurt for weight loss that dig into the mechanisms in more detail.

Health benefit	Skyr	Greek yogurt
Protein & satiety	High in protein and likely to promote fullness, although skyr-specific studies are limited.	High in protein and shown to increase fullness and reduce hunger in clinical studies.
Bone health	Same. A good source of calcium and protein, which support bone health. No skyr-specific bone studies are available.	Same. A good source of calcium and protein. Observational studies link higher yogurt intake with greater bone density, although evidence for fracture prevention is mixed.
Gut health & probiotics	Same. Contains live cultures that may support a healthy gut microbiome, although skyr-specific research is limited.	Same. Contains live cultures that may support a healthy gut microbiome, though most research looks at yogurt or fermented dairy broadly rather than Greek yogurt specifically.
Digestion & lactose	Same. Lower in lactose than milk and often easier to digest for people with mild lactose intolerance.	Same. Lower in lactose than milk and often easier to digest for people with mild lactose intolerance.

Skyr vs. Greek yogurt: How to use them

Because they’re so similar nutritionally, choosing between skyr and Greek yogurt often comes down to texture and how you plan to use it.

Skyr has a thicker, denser texture that holds its shape well, making it a great choice for:

• Smoothie bowls
• Overnight oats
• High-protein snacks topped with fruit and nuts
• Savory dips and spreads
• Eating on its own if you prefer a firmer, less creamy texture

Greek yogurt is slightly creamier and easier to stir or spread, making it ideal for:

• Parfaits
• Smoothies
• Swapping for sour cream
• Creamy salad dressings and dips
• Marinades for chicken or other proteins
• Baking in place of higher-fat dairy ingredients

Both skyr and Greek yogurt are incredibly versatile. If you’re trying to eat more protein, think beyond breakfast—either one can work as the base for a savory dip, a quick lunch, or an afternoon snack. Overall, the best choice is the one you’ll actually look forward to eating.

Skyr vs. Greek yogurt: Are they safe?

For most people, yes. Skyr and Greek yogurt are safe, nutritious foods that can fit into a healthy eating pattern. There are just a few things to keep in mind:

• Lactose intolerance: Both contain less lactose than milk because fermentation and straining remove some of the natural milk sugar, making them easier for many people with mild lactose intolerance to digest. But neither is lactose-free.
• Milk allergy: If you have a true milk allergy, avoid both skyr and Greek yogurt. Unlike lactose intolerance, a milk allergy is an immune system reaction to milk proteins.
• Added sugar: Plain varieties are naturally low in sugar, but flavored versions can contain several teaspoons of added sugar. Check the nutrition facts label and ingredient list if you’re trying to limit added sugars.
• Sodium: Some flavored or specialty varieties contain more sodium than others, so it’s worth comparing labels if you’re watching your sodium intake.

Common questions about skyr vs. Greek yogurt

What is the difference between skyr and Greek yogurt?

Skyr and Greek yogurt are both thick, high-protein cultured dairy products, but they’re made a little differently. Traditional skyr is made with skim milk and a small amount of rennet, which technically makes it a fresh cheese, while Greek yogurt is made by straining yogurt to remove whey. For most people, the biggest differences are texture and protein.

Is skyr or Greek yogurt healthier?

Neither is clearly healthier. Both are high in protein, relatively low in calories, and provide nutrients like calcium along with live cultures. The best choice is usually the one you enjoy eating and can fit into your routine.

How is skyr made compared with Greek yogurt?

Both are made by fermenting milk with live cultures and then straining it to create a thick, creamy texture. Traditional skyr also includes a small amount of rennet and is strained more extensively, which helps explain its slightly higher protein content.

Which has more protein, skyr or Greek yogurt?

Skyr usually contains a few more grams of protein per serving than Greek yogurt because it’s strained more extensively. However, both are excellent sources of protein, and the difference is relatively small.

Is skyr the same as Icelandic yogurt?

Yes. In the U.S., “Icelandic yogurt” is the common name used to market skyr. Although skyr is technically classified as a fresh cheese, it’s eaten and used just like yogurt.

How does kefir compare to Greek yogurt or skyr? 

Kefir is a fermented milk drink that contains a wider variety of bacteria and yeasts than Greek yogurt or skyr. Greek yogurt and skyr are typically higher in protein and have a thicker texture, while kefir may offer greater microbial diversity. All three can be nutritious choices, so the best option depends on your taste preferences and nutrition goals.

The bottom line: Whether you choose skyr or Greek yogurt comes down to personal preference

If you’re trying to choose between skyr and Greek yogurt, you don’t have to worry about making the “wrong” choice. Both are high in protein, relatively low in calories, and packed with nutrients like calcium, along with live cultures that may support gut health. Research suggests both can help you feel fuller than many common snack foods, making them smart additions to a balanced eating pattern—but neither is a magic weight-loss food on its own.

The biggest nutritional difference is protein. Skyr is typically strained more extensively, so it often contains a few extra grams per serving. For most people, though, that small difference is less important than choosing a plain variety with little or no added sugar and finding one you genuinely enjoy eating.

The best choice is usually the one you can see yourself eating consistently. Whether that’s the thicker, tangier texture of skyr or the creamier consistency of Greek yogurt, either one can help you build a satisfying breakfast, snack, or meal that supports your long-term health goals.

For more guidance on building healthier habits that last, download Noom on iOS or Android.