Stonyfield Organic Greek Nonfat Yogurt Plain - 32 oz: Full Nutrition, Labelgrade B+ (82/100)

B+ 82 / 100 — Clean ingredient list, very low saturated fat, effectively zero sugar, and very low sodium.

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Protein
63/100
📋
Ingredients
86/100
🧈
Sat fat
100/100
🧂
Sodium
100/100
🍬
Sugar
100/100
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Fiber
30/100

The short answer

Stonyfield Organic Greek Nonfat Yogurt Plain delivers 16g of protein for 90 calories per 180g serving (USDA FDC 2757843) — and it does it with a single ingredient on the label: cultured pasteurized organic nonfat milk. It earns a B+ (82/100), with perfect marks on saturated fat, sodium, and sugar. This is the USDA-organic plain Greek yogurt in a 32 oz tub — the clean-label, buy-it-by-the-quart alternative to Fage and Chobani.

Why the B+

DimensionGradeScoreWhy
Protein densityC63 / 1008.9g per 100g — you reach 16g by eating a big serving, not by weight; mostly water
Ingredient qualityA-86 / 100One ingredient, zero additives — among the shortest labels in the category
Saturated fatA+100 / 1000g — it’s nonfat strained milk
SodiumA+100 / 10065mg per serving (10mg per oz) — very low
SugarA+100 / 1005g, all naturally-occurring lactose; no added sugar
FiberF30 / 1000g, structural — no dairy protein carries fiber

The honest read: the only thing keeping this out of the A range is protein density (C), and that’s a measuring quirk, not a flaw. The score is per 100g, where strained yogurt looks unimpressive because it’s largely water — but per serving the 16g is a legitimate “high in protein” portion. The fiber F is unavoidable for any dairy product. Everything Labelgrade actually penalizes for — added sugar, sodium, saturated fat, additives — this yogurt aces.

The organic is the whole point

Strip away the certification and this is a textbook plain nonfat Greek yogurt — which is exactly why the organic seal is the reason to reach for it over the cheaper twin. Look at the head-to-head: Chobani Plain Non-Fat posts the identical 16g protein and 90 calories per 180g, and scored an 81 to Stonyfield’s 82. The macros won’t decide it. What separates them is that Stonyfield’s milk comes from cows raised to USDA organic standards (no synthetic hormones, antibiotics, or non-organic feed), and its label lists one ingredient where Chobani spells out its six cultures. If organic dairy matters to you, this is the plain Greek yogurt that delivers it without compromising the nutrition.

What the single-ingredient label buys you

“Cultured pasteurized organic nonfat milk” is as short as a yogurt label gets, and the contrast across the shelf is real:

That’s the trade you’re making: Stonyfield won’t win a protein-per-cup contest against a whey-fortified tub, but nothing on its label needs explaining.

How it compares

ProductProtein per servingPer 100 gCaloriesSat. fatLabel
Stonyfield Organic Plain (this product)16g8.9g900g1 ingredient, organic
Chobani Plain Non-Fat16g8.9g900gnonfat milk + cultures
Fage Total 5%15g8.8g1606gmilk + cream + cultures
Oikos Pro Vanilla20g8.3g1400gwhey-fortified, sweetened

Read across: Stonyfield and Chobani are statistical twins on every macro, so the choice between them is organic vs. price. Fage trades 70 extra calories and 6g of saturated fat for a creamier full-fat texture. Oikos buys its 4 extra grams of protein with added whey and a longer ingredient list. Stonyfield’s lane is leanest-and-cleanest, certified organic.

The 32 oz tub is the value format

This is the quart tub, not a single-serve cup — roughly five 180g servings, about 80g of protein total. Buying the big tub is the cheapest way into organic Greek yogurt: you portion it yourself, skip the per-cup packaging markup, and use it where plain yogurt shines — as a sour-cream swap, a smoothie base, a marinade tenderizer, or a bowl you sweeten with your own fruit (keeping the added sugar at the zero the label starts with). The only shopper better served elsewhere is someone who specifically wants grab-and-go single cups or is chasing the absolute highest protein-per-serving, where a whey-fortified yogurt wins.

Ingredients

Cultured pasteurized organic nonfat milk. (Verbatim from the USDA Branded Foods entry, FDC 2757843 — a single ingredient, no additives.)

Where to buy

Affiliate links — we may earn a commission at no extra cost to you. The Labelgrade score is independent of affiliate relationships. More.

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Quick Facts

Per serving · 180g

UPC 00052159532505
Verified 2026-06-02 · checked monthly
90
Calories
16g
Protein 32% DV
7g
Carbs 3% DV
0g
Fat 0% DV
per 100 g
8.9g protein · 50 cal ·2.8g sugar ·36mg sodium
per oz (1 oz)
2.5g protein · 14 cal ·0.79g sugar ·10mg sodium
Sugar 5g
Fiber 0g · 0% DV
Saturated fat 0g
Sodium 65mg · 3% DV
Full nutrition facts
Nutrition Facts
Nutrient Per Serving (180g)
Calories90
Protein16g
Total Fat0g
Saturated Fat0g
Total Carbohydrates7g
Dietary Fiber0g
Total Sugars5g
Sodium65mg

Scope: This page applies specifically to Stonyfield Organic Greek Nonfat Yogurt Plain - 32 oz · UPC 00052159532505. Other sizes, flavors, or formulations may differ.

How this fits each diet

Each score is computed from the same USDA nutrition + ingredient data, against the published rules of each diet. They tell you "does this food fit this diet" — not whether the diet is right for you.

Vegan
F 0/100

contains animal-derived ingredients

Vegetarian
A+ 100/100

contains no listed meat or fish

Gluten-free
A+ 100/100

no wheat, barley, rye, or malt detected in USDA ingredient list

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Frequently Asked Questions

How much protein is in Stonyfield Organic Greek Nonfat Yogurt Plain?

16 grams per 180g serving for 90 calories (USDA FDC 2757843). That's 8.9g of protein per 100g, or about 2.5g per oz. The full 32 oz tub holds roughly 80g of protein across five servings.

Is this the same as Chobani or Fage plain Greek yogurt?

Nutritionally it's a dead ringer for Chobani Plain Non-Fat — both are 16g protein and 90 calories per 180g. The differences are the certification (Stonyfield is USDA Organic; Chobani plain is not) and the label (Stonyfield lists one ingredient; Chobani adds its six named cultures). Fage Total 5% is the full-fat sibling: similar protein but 160 calories and 6g saturated fat from the cream.

What makes it 'organic,' and does that change the nutrition?

The 'Organic' on the tub means the milk comes from cows raised to USDA organic standards — no synthetic hormones, antibiotics, or non-organic feed. It does not change the macros: an organic and a conventional nonfat Greek yogurt with the same straining will post nearly identical protein, fat, and sugar. You're paying for the sourcing, not a different nutrition label.

Why only a C for protein density if it's 'high in protein'?

Two different yardsticks. Per serving, 16g clears the FDA 'high in protein' bar (it's 32% of the 50g Daily Value). But Labelgrade's protein-density score is per 100g, and at 8.9g/100g this yogurt is mostly water — you hit 16g by eating a large 180g serving, not because the food is protein-dense by weight. That's normal for any strained yogurt and is the single thing capping the grade.

Does it have added sugar?

No. The USDA entry lists no added sugar; the 5g of sugars per serving is naturally-occurring lactose from the milk. Straining removes much of the whey (and its lactose), which is why a plain Greek yogurt runs lower in sugar than regular plain yogurt.

Is it a clean enough label for Whole30 or a strict elimination diet?

The ingredient line is a single item — cultured pasteurized organic nonfat milk — with no gums, starches, sweeteners, or added flavors. (Whole30 itself excludes dairy, so it isn't compliant there, but for a clean-label or additive-free screen it's about as bare as a dairy product gets.)

When was this data last verified?

2026-06-02, against USDA FoodData Central FDC 2757843. We re-verify top pages monthly and update within 7 days of a reformulation.