Yogurt (Greek)
Dairy · Yogurt
Greek yoghurt is low FODMAP at 100 g, about a third of a cup, which rates green with 0.6 g of lactose. A bigger bowl of 200 g doubles the lactose to 1.2 g and moves the rating to amber. So with IBS it’s a portion question: a modest serve is green, a breakfast-sized tub needs more caution.
Last updated 3 September 2026Serving sizes for yogurt (greek)
A green serve is 100 g, about 1/3 cup. At 200 g (2/3 cup) the rating is amber.
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 1/3 cup | 100 g | Lactose 0.6 g | |
| 2/3 cup | 200 g | Lactose 1.2 g |
Breakdown for 0.33 cups
Is yogurt (greek) low FODMAP?
The FODMAP in Greek yoghurt is lactose, the milk sugar, and it tracks the portion size exactly: 0.6 g at the 100 g serve, 1.2 g at 200 g, where the rating shifts from green to amber. Greek yoghurt is strained, which drains off much of the watery whey, and a good share of the lactose leaves with it. That’s why it manages a green serve while regular yoghurt rates amber at its first tested serve. No other FODMAP groups are recorded, so lactose is the whole story here.
Yogurt (Greek) and IBS: what to know
Tolerance to lactose is personal: it depends on how much lactase your gut makes, so the 100 g green serve is a starting point, not a verdict. If yoghurt features in your breakfast, remember the day’s lactose adds up; a splash of regular milk in coffee plus a yoghurt bowl draws on the same budget. Yoghurt’s live cultures also digest some lactose for you, which is one reason many people find yoghurt gentler than the equivalent amount of milk.
Gut-friendly ways to eat yogurt (greek)
Keep the serve near 100 g, roughly a third of a cup, and build the bowl out with low FODMAP fruit like strawberries or blueberries and a spoonful of chia seeds. It works as a sour-cream stand-in on tacos and in marinades too. If 100 g never feels like enough, lactose-free yoghurt rates green and removes the ceiling worry, and coconut yoghurt is a green-rated dairy-free option.
Frequently asked questions
Can I eat Greek yoghurt with IBS?
Yes, in measured serves. At 100 g, Greek yoghurt rates green with 0.6 g of lactose, so a small bowl or dollop is a solid choice. At 200 g the lactose reaches 1.2 g and the rating is amber, so bigger portions are where some people start noticing symptoms.
Is Greek yoghurt better than regular yoghurt for a low FODMAP diet?
Generally yes. Straining removes much of the whey, and a good portion of the lactose drains away with it, which is how Greek yoghurt earns a green rating at 100 g while regular yoghurt starts at amber in our guide. The thicker the yoghurt, the less watery, lactose-carrying whey remains.
How much Greek yoghurt can I have per day?
The data is per portion: 100 g rates green and 200 g rates amber, with lactose doubling from 0.6 g to 1.2 g. Rather than one daily number, space serves out and count other lactose sources like milk in the same tally. If you regularly want more than 100 g at a time, lactose-free yoghurt sidesteps the issue.
What can I use instead of Greek yoghurt?
Lactose-free yoghurt is the closest swap and rates green in our guide, since it’s ordinary yoghurt with the lactase enzyme added. Coconut yoghurt is a green-rated dairy-free alternative with a similar thickness. Both work in the same places: breakfast bowls, dips and marinades.
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