Best High-Protein Greek Yogurts

Among unsupplemented Greek yogurts (plain, no added whey protein), Fage Total 0% leads the US market at about 18 g of protein per 100 g (~24 g per 5.3 oz cup). Among supplemented Greek yogurts (with added whey protein concentrate or isolate), Oikos Pro and Triple Zero both reach 20+ g per 100 g — but at the cost of an ingredient list that's no longer just milk + cultures.

Yes, but with sugar trade-offs. Most flavored Greek yogurts retain 12–17 g of protein per cup, but add 10–15 g of sugar from fruit + cane sugar. The non-fat plain versions are the cleanest base; flavored varieties move from a protein source toward a dessert source as sugar climbs. The middle ground is "lightly sweetened" varieties (Two Good, Yoplait Greek 100) that use stevia or monk fruit instead of cane sugar — protein-dense without the sugar cost.

Three reasons. (1) Straining intensity — more thorough straining concentrates more protein. Fage strains more aggressively than most. (2) Added whey protein — brands like Oikos Pro, Triple Zero, and Yoplait Greek 100 spike their formulas with extra whey concentrate to hit a "20 g per serving" marketing target. (3) Serving size variation — most 5.3 oz cups are 150 g, but some brands use 170 g, which inflates the labeled per-serving number even at lower density.

Depends what you value. Pro: more protein per serving. Con: longer ingredient list, sometimes including milk protein concentrate, whey protein concentrate, stevia, lactase enzyme. Fage Total 0% has 2 ingredients (cultured pasteurized skim milk + 5 live cultures). Oikos Pro Vanilla has 9 ingredients including supplemented protein. For pure ingredient quality, unsupplemented wins. For total protein per cup, supplemented wins. Both are legitimate choices.

Plain Greek yogurt has less sugar than plain regular yogurt — the straining removes lactose with the whey. Plain non-fat Greek yogurt: 3.6–4 g of sugar per 100 g. Plain non-fat regular yogurt: 6–8 g per 100 g. Flavored Greek yogurts close this gap quickly — a "blueberry" Greek yogurt with added sugar can hit 10–14 g per 100 g.

Fage Total 0% Plain is the protein-density leader and the cleanest ingredient list (cultured pasteurized skim milk + 5 live cultures). Chobani Plain Non-Fat is a close second at slightly lower protein density. Both score A or A− on our v3 methodology.

Oikos Pro Vanilla is the highest-protein US Greek yogurt at ~20 g per 150 g cup. Triple Zero (Dannon Oikos) is close, with 15 g protein + 0 added sugar + 0 fat. Both use added whey protein to clear the 20 g bar. They're engineered products, not minimalist — but they hit a specific use case (post-workout cup, max protein per oz) better than unsupplemented options.

Mechanically similar — both are strained dairy. Skyr is technically classified as a fresh cheese in Iceland, but in the US market it's sold and regulated as yogurt. Siggi's is the dominant skyr brand. Protein density runs 13–18 g per 100 g — slightly less than Fage but cleaner-tasting and often lower in sugar than flavored Greek yogurts.