For decades, the Mediterranean basin has held an absolute monopoly on nutritional health. They convinced us that olive oil, wheat and southern ferments were unbeatable. In the dairy aisle, this hegemony translated into the undisputed reign of Greek yogurt, a product that went from being a traditional food to becoming in the supermarket star thanks to its thick texture and high concentration of complete proteins. However, nutrition science has turned its sights toward much colder latitudes.
Today, the undisputed protagonist of healthy diets, recommended by both sports nutritionists and metabolic researchers, does not come from Athens, but from Iceland. Is called skyrand although its appearance deceives us, it is rewriting the rules of what we consider a perfect breakfast. At first glance, the skyr It looks like some kind of ultra-creamy Greek yogurt, but it’s not technically a yogurt. Actually, it is about of a fresh, skimmed whipped cheese, made through a double fermentation process.
From the Vikings to the supermarket shelf
The history of this product begins with the first Viking settlements in Iceland, around the year 874. The Norwegian settlers who arrived on the island encountered an extreme climate and unfriendly lands. In that scenario, the skyr It became a real life insurance: a food ultra-concentrated in nutrients that allowed them to survive the harshest winters when there were hardly any resources.
The traditional process starts with skimmed and pasteurized cow’s milk that is heated to 75ºC and cooled to 37ºC. Lactic acid bacteria are added to this base (such as Streptococcus thermophilus and Lactobacillus bulgaricus) and, crucially, rennet. After hours of fermentation, the product is carefully strained to eliminate the liquid whey. The result is a dense paste, with hardly any water, that requires three to four times more milk to produce than conventional yogurt.
Today, the skyr has conquered supermarket shelves such as Lidl, Mercadona, Aldi or Alcampo. Nutritionist Blanca García-Orea points out that success in the supermarket lies in their clean labels: the best commercial options contain only two ingredients, pasteurized milk and lactic ferments, without added sugars or sweeteners.
The clinical fascination with skyr It is based on its macronutrient profile. According to data collected by Healthlinea typical serving provides between 11 and 19 grams of protein, practically double that of a standard natural yogurt, while maintaining an almost non-existent level of fat (between 0% and 0.5%).
But how exactly is it different from its direct competitors in the refrigerator? Nutritionist Laura Parada clears up the usual confusion between the skyrhe kefir and the yogurt. While the kefir stands out for a microbiota very diverse that includes yeasts and acetic bacteria, and normal yogurt It is based on lactic fermentation simple that leaves a light texture, the skyr It makes the difference because it is a fresh fermented cheese with a very high protein concentration and very thick texture.
Added to this are other physiological advantages. The rigorous casting process of skyr eliminates approximately 90% of its lactose contentwhich allows many people with mild intolerance to consume it without experiencing digestive discomfort. At the micronutrient level, the portal Ingredia Food highlights that A 150-gram serving covers about 15-20% of the recommended daily intake of calcium, essential to protect against osteoporosis, and 19% of vitamin B2 (riboflavin), linked to the reduction of oxidative stress.
What happens in your body when you eat it
When you eat a tub of skyr, you’re giving your muscles exactly what they ask for. According to the magazine Nutrition & Metabolismits proteins are loaded with leucine and other key amino acids that trigger muscle synthesis. Basically, it’s an excellent tool for shielding lean mass when you’re looking to lose weight or prevent muscle from deteriorating with age.
As if that were not enough, it takes away your hunger suddenly. The Aarhus University in Denmark did an experiment in 2024 pitting the classic breakfast of bread and jam against a bowl of skyr with oats. The conclusions of researcher Mette Hansen were resounding, the Nordic mix boosted mental concentration and satiety throughout the morning. Some women in the study were so full that they couldn’t even finish their portion.
Science continues to find medical applications. Last year, the International Dairy Journal published a discovery very revealing about him skyr fermented with strains such as L. plantarum. It turns out that these formulations are capable of stopping blood glucose spikes after meals, while helping to reduce cholesterol and acting as a powerful shield against cellular inflammation.
Not all the skyr it’s gold
However, you have to put a magnifying glass on the shadows of any fashion product. That a container has the word printed skyr It does not make it a safe passage to comprehensive health.
Magazines like Men’s Health warn that the industry is already marketing ultra-processed versions, such as ice cream skyrwhich although they provide protein, camouflage glucose syrup, fructose and added sugars in their ingredients. In addition, Healthline remember thatbeing made from cow’s milk, the skyr It is strictly not recommended for people with allergies to casein or whey protein, as it can trigger severe reactions.
On the other hand, the debate about fat arises. Although the original version of skyr is applauded for being skimmed, a deep analysis that we did in Xataka We explain the historical demonization of dairy fat. Modern science is rehabilitating natural whole dairy products thanks to the “dairy matrix” (the membrane of the fat globule), which appears to have a cardiovascular protective effect and greater satiating power. This suggests that, although the skyr It is an excellent tool due to its protein density, completely dispensing with dairy fat in our diet based on ancient dogmas could be a mistake.
The emergence of skyr in the global diet is not a marketing accident, but the convergence of an ancient tradition with the demands of modern metabolic medicine. Contemporary nutrition has stopped looking for shortcuts in laboratories to fixate on food matrices dense, real and fermented. Although it is not a magical food nor does it replace active lifestyle habits, the experts’ obsession with this Nordic cheese disguised as yogurt has a solid basis: science, several centuries later, has proven the Vikings right.
Image | freepik and Rusty Blazenhoff
GIPHY App Key not set. Please check settings