Greek yogurt vs. Skyr vs. Icelandic: a label-by-label breakdown

Walk down a yogurt aisle in 2026 and there are six high-protein options that all look identical: thick, white, in a 5.3oz tub, $1.79. The differences are real.

Greek yogurt (strained)

The original "thick" yogurt. Made by straining whey from regular yogurt.

• 5.3oz nonfat: ~18g protein, 90 cal
• 5.3oz 2%: ~17g protein, 130 cal
• 5.3oz full fat: ~16g protein, 170 cal

Brands: Fage (highest protein), Chobani, Oikos.

Skyr (Icelandic style)

Technically a fresh cheese, not a yogurt, but sold next to yogurt. Made with skim milk and a different culture, then strained.

• 5.3oz: ~17g protein, 100 cal
• Notable for very low fat by default
• Brands: Siggi's (the canonical one), Icelandic Provisions

Skyr is generally less tart than Greek yogurt and has a denser, almost mousse-like texture.

"Triple-strained" or "Filtered" yogurt

Newer category, marketed as ultra-high-protein.

• 5.3oz: 18–22g protein, 90–110 cal
• Brands: Two Good (uses chickpea protein boost), Oikos Pro, Ratio

Regular (unstrained) yogurt

For comparison:

• 5.3oz plain: ~6–8g protein, 100 cal

The protein difference between regular and Greek/Skyr is real and meaningful — roughly 2x for the same calories.

Flavored vs. plain

The single biggest macro hit comes from flavored variants. A "vanilla" Greek yogurt usually adds 8–14g of added sugar. The protein stays high but the calorie count climbs from 90 to 150–180.

If you want sweet, buy plain and add berries + a teaspoon of honey. You'll save ~50 cal/serving and 10g of added sugar.

What I'd actually recommend

For pure macros: Fage 0% or Siggi's. Both deliver 17–18g protein at 100 cal or less.

For taste: Greek 2%, full-fat skyr, or anything with whole milk. The fat genuinely improves the experience and the satiety.

For protein maximalists: Oikos Pro, Two Good Pro, Ratio Keto. 20g+ protein at the same calorie count, but the texture is engineered (a little chalkier).

For the wallet: store-brand plain Greek yogurt is usually within 1g of protein and $0.40 cheaper per tub.

The tracking habit

If you eat yogurt 5+ times a week, log a representative single tub once and save it as a favorite. The app will surface it instantly the next time you snap a breakfast photo with yogurt visible — no re-entering required.

The dairy aisle is the cheapest protein in your kitchen. Stocking it well is half of high-protein eating.