Oikos Pro Vanilla Greek Yogurt: 20g Protein per Cup, Labelgrade B+ (83/100)

The short answer

Oikos Pro Vanilla packs 20g of protein into a 150g cup for 140 calories (USDA FDC 2755594) — the most protein-per-cup of any Greek yogurt we track, and the reason it’s the default pick when grams-per-tub is what you’re optimizing for. It earns a Labelgrade B+ (83/100): effectively zero sugar, no saturated fat, and very low sodium, held back from an A by a moderate per-100g protein density and a longer-than-plain ingredient list. The thing worth knowing up front is how it gets to 20g — it doesn’t strain its way there like Fage; it adds whey.

Why the B+

The grade tells an honest story: every macro that’s supposed to be low is low (sat fat, sugar, sodium all perfect). What keeps it out of the A tier is the two things you trade for 20g in a single cup — a density score that reflects the added water, and an ingredient list with a thickener and a preservative on it. The fiber F is unavoidable for any yogurt and isn’t held against it heavily in the weighting.

How it gets to 20g — and why that matters

This is the one fact that separates Oikos Pro from every plain Greek yogurt on the shelf. Look at the ingredient order: ultra-filtered nonfat milk, water, whey protein concentrate. Fage and Chobani Plain reach their protein by straining the liquid whey out of milk until what’s left is dense. Oikos Pro does the opposite — it starts from a milk base and adds whey protein back in. That’s a legitimate way to build a high-protein product, and it’s the reason a 150g cup (smaller than Fage’s standard 180g) still out-grams it: 20g vs 18g.

The catch shows up in density. Because water is the second ingredient, only 13.3g of every 100g is protein — middling for the category. If you eat by volume (one cup, one snack), Oikos Pro is the winner. If you’re tracking protein per calorie or per gram of food, a strained yogurt is more concentrated. Both can be true at once, and the table below makes the trade visible.

How it compares

Per 100g, this whole cluster lands in a tight 13g band — none of them are dense like cottage cheese-on-steroids or chicken. The separation is per-serving: Oikos Pro’s 150g cup carries 20g, and you’d want to weigh that against a yogurt’s sugar and additive profile rather than density alone, since the per-100g numbers are nearly identical across the group.

The vanilla tax: sweetener, cream, and a longer label

Because this is the flavored Pro and not a plain tub, the recipe picks up things plain yogurt doesn’t. Stevia leaf (Reb M) does the sweetening — there’s no added sugar, but it’s not unsweetened either; the 3g of sugars is purely the milk’s own lactose. A touch of cream is added back for mouthfeel, which is unusual to see in something that still reads 0g saturated fat, and tapioca starch thickens it to that spoonable, set texture. None of this is a red flag, but it’s why ingredient quality lands at B rather than the B+/A a two-ingredient strained yogurt earns. If you want vanilla flavor and max protein without scooping powder into plain yogurt yourself, this is the convenient version of that — you’re paying for it with a slightly busier label.

Ingredients (from the USDA Branded Foods entry)

Cultured Grade A ultra-filtered nonfat milk, water, whey protein concentrate, natural flavors, cream; and less than 1% of: tapioca starch, lemon juice concentrate, stevia leaf (Reb M), potassium sorbate (to maintain freshness), vitamin D3, and yogurt cultures (S. thermophilus and L. bulgaricus). (Transcribed from USDA FDC 2755594; the source entry contains minor spelling artifacts.)

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Scope: This page applies specifically to Oikos Pro Vanilla Greek Yogurt · UPC 00036632042552. Other sizes, flavors, or formulations may differ.