Protein in Greek Yogurt: Grams per Cup, Brand and Type

Protein in Greek yogurt is the main reason it has become a staple for people who lift, diet or just want a filling breakfast. Plain nonfat Greek yogurt has about 10 g of protein per 100 g, or roughly 23 g per cup, which is two to three times more than regular yogurt. This guide covers protein by serving size and fat level, how straining works, how it compares with skyr and cottage cheese, and how to use it to boost meals.

Values come from USDA FoodData Central and typical labels. Brands vary, so check yours.

Greek yogurt protein by serving

Calories and macros per 100 g

Nonfat Greek yogurt gives about 17 g of protein per 100 kcal, which is close to chicken breast and far higher than most snacks.

Why Greek yogurt has more protein

Greek yogurt is regular yogurt that has been strained to remove much of the liquid whey. Roughly three to four kilos of milk go into one kilo of strained yogurt. Removing the watery whey concentrates the milk proteins (mainly casein), which is why the result is thicker and higher in protein, and also lower in lactose and sugar.

Some "Greek-style" products skip the straining and thicken with milk powder, starch or gelatin instead. They can be as low as 5 to 6 g of protein per 100 g. If protein matters to you, look for at least 9 g per 100 g on the label.

Flavoured vs plain

Buying plain and adding your own fruit, honey or cinnamon gives more protein and less sugar. A teaspoon of honey adds about 6 g of sugar, still far less than many fruit pots.

Greek yogurt vs other protein foods

Choosing between the top two? See Greek yogurt vs cottage cheese.

Is the protein good quality?

Yes. Dairy protein is a complete protein with all essential amino acids and is rich in leucine, which helps trigger muscle protein synthesis. About 80 percent of the protein in Greek yogurt is casein, which digests slowly. That's one reason Greek yogurt is a popular evening snack: it provides a steady supply of amino acids. Research reviewed in the ISSN position stand on protein supports dairy protein for muscle building and recovery.

Greek yogurt also provides calcium, although straining removes some of it with the whey, so it often has less calcium than regular yogurt. It also contains vitamin B12, phosphorus and, if labelled "live and active cultures", probiotic bacteria.

How to get more protein from Greek yogurt

• Breakfast bowl: 200 g Greek yogurt, 30 g granola, berries and a spoon of nut butter (about 28 g protein).
• Protein yogurt: stir in half a scoop of whey or casein for an extra 10–12 g.
• Savoury dip: mix with garlic, lemon and herbs for tzatziki to serve with chicken or vegetables.
• Swap for sour cream or mayo in tacos, potato salad or tuna salad.
• Smoothies: add 150 g for 15 g of protein; see high-protein smoothie without protein powder.
• Baking: replace some butter or oil in muffins and pancakes.

More ideas in Greek yogurt recipes and high-protein desserts.

How much Greek yogurt should you eat?

There's no set limit for most people. One to two servings (150–300 g) a day fits easily in a balanced diet and gives 15 to 30 g of protein. If you're aiming for a daily target, calculate it with the protein intake calculator and use the protein density calculator to compare it with other foods per 100 kcal.

People with a milk allergy should avoid it. Many people with lactose intolerance find Greek yogurt easier to tolerate than milk because straining and fermentation reduce lactose, but tolerance varies.

Greek yogurt for weight loss and muscle gain

For weight loss, Greek yogurt's high protein and low calorie count make it very filling. Protein is the most satiating macronutrient, and a 170 g pot at around 100 kcal can replace a higher-calorie snack such as a pastry or crisps. Choosing nonfat or 2% keeps calories low, while a little full-fat yogurt can still fit if it keeps you satisfied.

For muscle gain, Greek yogurt is an easy way to add 15 to 25 g of protein to a meal without cooking. Spreading protein across three to five meals a day, with 20 to 40 g at each, is a common strategy. A bowl of Greek yogurt before bed is a simple way to add one more protein feeding, and its casein digests slowly overnight.

For both goals, pair it with fruit or oats for carbohydrates, or nuts and seeds for healthy fats, depending on your daily calorie target. The macro calculator can help you work out how it fits.

Vegan alternatives

Most plant yogurts are low in protein (1 to 4 g per 100 g). Soy yogurt has more (around 4 g), and some pea protein or "high-protein" plant yogurts reach 8 to 10 g. For comparable protein, check the label or combine plant yogurt with soy milk or seeds.

Greek yogurt on a budget

Large tubs are usually half the price per gram of small pots. Making your own is also possible: strain regular plain yogurt through a fine sieve lined with a coffee filter or cheesecloth for several hours in the fridge. One kilo of regular yogurt makes roughly 400 to 500 g of strained yogurt. The leftover whey can go into smoothies, bread dough or oats. Compare costs with the protein cost calculator.

Quick label checklist

• At least 9 g of protein per 100 g
• Ingredients listed as milk and cultures, ideally nothing else
• "Live and active cultures" if you want probiotics
• Sugar under 5 g per 100 g for plain types

Bottom line

Plain nonfat Greek yogurt gives about 10 g of protein per 100 g, 17 g per small pot and 23 g per cup, at very few calories. Full-fat versions have slightly less protein but more creaminess. Choose plain, check labels for "Greek-style" products, and use it in both sweet and savoury meals to raise your protein easily.

Sources: USDA FoodData Central entries for plain nonfat and whole-milk Greek yogurt; ISSN position stand on protein and exercise. General information, not personalised dietary advice.