Product Category Label Guides
How to Read a Yogurt Label
Tell strained yogurt from thickened yogurt, find added sugar in flavoured pots, and check gelatin, live cultures, and protein without trusting the front.
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Quick answer
Greek yogurt and Greek style yogurt are different products, and the ingredient list separates them in one line. Beyond that, flavoured pots carry most of their sugar in the fruit layer, and gelatin is the entry that decides whether a yogurt is vegetarian.
Key takeaways
- Strained yogurt reaches high protein by removing whey. Thickened yogurt reaches thickness with milk protein concentrate or starch.
- Greek style is generally a texture description rather than a claim about straining.
- Plain yogurt shows sugars on the panel from lactose, so the figure is not evidence of added sugar.
- Gelatin is animal derived and appears in some yogurts as a setting agent, which matters for vegetarian, halal, and kosher shoppers.
- Live and active cultures wording tells you the cultures survived to the pot. Pasteurised after fermentation means they did not.
Step-by-step workflow
- 1Read the ingredient list before the front label. For yogurt it is short, and it settles most questions.
- 2Check whether the list contains only milk and cultures, or whether it adds milk protein concentrate, starch, or cream.
- 3For flavoured pots, read the sugars line and compare it with the plain version of the same brand. The difference is roughly the added sugar.
- 4Look for gelatin, pectin, or starch as the setting agent. Gelatin is animal derived, pectin and starch are not.
- 5Check for live and active cultures wording, or for a statement that the product was heat treated after culturing.
- 6Compare protein per 100g rather than per pot, because pot sizes vary between 100g and 170g.
Greek yogurt and Greek style are not the same product
Traditional Greek yogurt is strained. Whey is removed, which concentrates protein and produces thickness as a by-product. The ingredient list of a strained yogurt is usually short: milk and live cultures.
Greek style yogurt generally reaches similar thickness by a different route, using added milk protein concentrate, cream, or starch. That is a legitimate product, and it is a different one. The ingredient list is where the difference shows.
| Ingredient list contains | What it indicates | Typical protein per 100g |
|---|---|---|
| Milk, live cultures only | Strained yogurt | Around 9g to 10g |
| Milk, milk protein concentrate, cultures | Protein added rather than concentrated | Around 6g to 9g |
| Milk, cream, starch, cultures | Thickened for texture | Around 3g to 5g |
| Milk, cultures, no additions | Plain set or stirred yogurt | Around 4g to 5g |
Plain yogurt shows sugar, and that sugar is lactose
A plain natural yogurt commonly shows around 4g to 5g of sugars per 100g with no sugar added to it at all. That figure is lactose, the sugar naturally present in milk.
This makes the sugars line hard to read alone on a flavoured pot, because the total mixes lactose with whatever was added. The practical method is comparison: read the plain version of the same brand and treat the difference as roughly the added portion.
- Where a market requires a separate added sugars line, that line answers the question directly.
- Fruit-on-the-bottom and corner pots concentrate their sugar in the fruit layer rather than the yogurt.
- No added sugar flavoured yogurts typically use sweeteners such as steviol glycosides or sucralose. Check the ingredient list to see which.
Gelatin is the entry that decides the vegetarian question
Some yogurts, particularly low-fat and set varieties, use a gelling agent to hold texture. Gelatin is derived from animal collagen, so its presence makes a yogurt unsuitable for most vegetarians and raises certification questions for halal and kosher shoppers.
Pectin, from fruit, and modified starch are the common alternatives, and both are plant derived. The ingredient list names whichever was used, so this is a direct check rather than an inference.
Where a product carries a certification mark, that mark addresses the source question that the ingredient name alone cannot fully answer.
Live cultures, and when they are not live
All yogurt is made with bacterial cultures. Whether those cultures are alive when you eat it depends on what happened after fermentation.
Wording such as live and active cultures, or a named strain list, indicates the cultures are present in the finished product. A product that was heat treated after culturing, sometimes labelled as pasteurised after fermentation, is shelf-stable and does not carry live cultures.
FAQs
What is the difference between Greek yogurt and Greek style yogurt?
Greek yogurt is strained to remove whey, which concentrates protein. Greek style yogurt usually reaches similar thickness using added milk protein concentrate, cream, or starch. The ingredient list distinguishes them: a strained yogurt typically lists only milk and cultures.
Why does plain yogurt with no added sugar show sugar on the label?
That sugar is lactose, which is naturally present in milk. A plain yogurt commonly shows around 4g to 5g per 100g without any sugar being added.
Is yogurt always vegetarian?
No. Some set and low-fat yogurts use gelatin, which is animal derived, as a setting agent. Pectin and modified starch are plant-derived alternatives. The ingredient list names which one was used.
Does all yogurt contain live cultures?
All yogurt is made with cultures, but products heat treated after fermentation do not contain live ones. Look for live and active cultures wording or a named strain list to confirm they are present in the finished product.
Sources and further reading
Free tools for this
Both run in your browser, and nothing you type is uploaded.
- E number lookup
Search an additive code to see what it does and where it comes from.
- Ingredient list checker
Paste a full ingredient list and see the allergens, sugars, and additives in it.
Try LabelWise
Use LabelWise to check a yogurt pot for gelatin and compare its protein per 100g with a strained alternative.
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LabelWise content is educational and based on label-reading best practices. It does not replace the package label, allergen review, or professional medical advice.