Authentic Greek Yogurt vs "Greek-Style": How to Read the Label in 10 Seconds

Two tubs sit next to each other in the chiller. Both say "Greek" somewhere on the front. One was made by fermenting milk and draining away two-thirds of it as whey. The other was made by stirring protein powder and pectin into ordinary yogurt. They cost about the same. The label will tell you which is which, if you know where to look.

The 10-second label test: ingredients, protein per 100 g, origin.

Check 1: the ingredient list

Authentic strained yogurt has a short list: milk (sometimes "cow's milk" or "sheep's milk"), possibly cream to set the fat level, and live yogurt cultures. That is all. Greek law allows nothing else in a product sold as yogurt.

A thickened product will show one or more of the following:

• milk protein concentrate, whey protein concentrate, skimmed milk powder

• pectin, modified starch, corn starch, tapioca starch

• gelatin, agar, carrageenan, guar gum, locust bean gum

• "stabilisers" or "thickeners" as a category

None of these are harmful. They simply mean the yogurt was not strained, and the texture and protein were engineered rather than concentrated.

Check 2: protein per 100 g

Straining concentrates protein. Use these thresholds for plain yogurt:

Protein per 100 g	What it tells you
9 g or more	Strained (cow's milk) or fortified to match it
8 g or more	Minimum for Greek sheep's milk strained yogurt under Greek law
5.6 g	Legal minimum for Greek cow's milk strained yogurt
4–6 g	Regular yogurt, perhaps lightly thickened
Under 4 g	Regular yogurt

A product calling itself Greek with 5 g of protein per 100 g has not been strained to any meaningful degree. Flavoured and fruit versions dilute the protein, so compare plain to plain where you can.

Check 3: origin

"Product of Greece" or "Made in Greece" places the yogurt under the Greek Food and Beverages Code, which defines strained yogurt by method and protein content and bans thickeners. Elsewhere the rules differ:

• United Kingdom. After FAGE v Chobani (Court of Appeal, 2014), a yogurt not made in Greece cannot be sold as "Greek yoghurt" in the UK; it must say "Greek-style" or "strained". So in Britain "Greek yoghurt" on the front is a reliable origin signal.

• European Union. No protected designation exists, but the European Commission has taken the position that "Greek yogurt" on yogurt made elsewhere misleads consumers under the Food Information Regulation (1169/2011); it opened proceedings against the Czech Republic in 2017 and the Czech authorities withdrew the term in 2019. Enforcement varies by country; "Greek-style" is the safe term for non-Greek product.

• United States. The FDA standard of identity for yogurt (21 CFR 131.200, revised 2021) does not define "Greek" or "strained". Any yogurt may be called Greek regardless of where it was made or how. Most major American Greek yogurts are in fact strained; some are thickened. Here checks 1 and 2 do all the work.

More on the legal history in Who owns the name "Greek yogurt"?.

Words on the front, and what they are worth

• "Strained" — the most honest word on a tub. It names the method.

• "Authentic Greek" — meaningful only together with a Greek origin statement.

• "Greek-style", "Greek recipe", "Greek inspired" — tells you it is not Greek, and usually not strained.

• "High protein" — not a method claim; check whether the protein came from straining or from added concentrate.

• "Thick & creamy" — texture claim; thickeners achieve it cheaply.

• "Traditional" — in Greece, a legal term for set yogurt with a skin; elsewhere, decoration.

• "Live cultures" / "live and active cultures" — required of yogurt in Greece; in the US the Live & Active Cultures seal indicates at least 100 million cultures per gram at manufacture.

Does the difference matter?

For nutrition, yes: you are paying Greek-yogurt prices for roughly half the protein and more carbohydrate. For cooking, yes: thickened yogurt breaks and weeps when heated or salted because starches and gums behave differently from a concentrated casein gel. For taste, it depends: some thickened products are pleasant, but they tend toward a uniform, slightly gluey mouthfeel rather than the dense, clean body of strained yogurt. For the market, it matters a great deal: in the UK, authentic Greek yogurt sales grew about 52% in 2025 while Greek-style grew 7%, which suggests shoppers have learned to read labels.

A worked example

Two plain yogurts, both labelled Greek, both 170 g:

	Tub A	Tub B
Ingredients	Pasteurised cow's milk, cream, live yogurt cultures	Milk, milk protein concentrate, pectin, live cultures
Protein per 100 g	9.0 g	5.5 g
Origin	Product of Greece	Made in the EU
Verdict	Strained	Thickened "Greek-style"

The protein and ingredient lines settle it even before you reach the origin statement.

Related guides

• What is Greek yogurt?

• Best Greek yogurt: how to choose

• Greek yogurt brands made in Greece and the product directory

Sources

• Greek Food and Beverages Code, Article 82 (Yogurt), consolidated: aade.gr (PDF)

• FAGE UK Ltd v Chobani UK Ltd [2014] EWCA Civ 5: caselaw.nationalarchives.gov.uk; summary at keystonelaw.com

• European Commission position on "Greek yogurt" labelling in Czechia (2017) and Czech withdrawal (2019): protothema.gr, greekcitytimes.com

• US FDA, yogurt standard of identity final rule (2021): fda.gov, Federal Register

• Cook's Illustrated, Greek yogurt taste test (protein of strained vs thickened brands): cooksillustrated.com

• PowerGame, UK and Italian Greek-yogurt market split 2025: powergame.gr