Low-FODMAP cooking
Lactose-free yogurt is the best swap — same tang, same protein, same thickness, without the lactose. If you need it dairy-free, a plain coconut yogurt (checked for added inulin) is the most reliable low-FODMAP choice. Regular and Greek yogurt are high because they hold onto milk's lactose.
Yogurt is made from milk, so it carries milk's lactose — the sugar that needs lactase to digest and ferments in the gut when it isn't. Greek yogurt is strained, which removes some of the whey and a little lactose, but not enough to bring a normal serving into the low range. The fix is the same as for milk: either use dairy that's had its lactose split (lactose-free yogurt), or switch to a plant-based yogurt that never had lactose — just watch for high-FODMAP thickeners some brands add.
In short, yogurt is high in lactose — the natural sugar in dairy, which needs the enzyme lactase to be digested. Many adults make less lactase with age, so undigested lactose ferments in the gut. These are all FODMAPs — the fermentable carbs behind most IBS food triggers.
Monash rates a normal serving of regular or Greek yogurt high in lactose, while lactose-free versions and plain coconut yogurt test low at the same amount.
No single swap does everything yogurtdoes, so pick the one that fits the job — here’s how each performs, and where it doesn’t.
1:1 — completely interchangeable
1:1 in most uses
1:1 for a higher-protein, dairy-free option
1:1 as a lighter dairy-free swap
Every serving threshold below is drawn from published research with the sources shown, so you can see exactly why each food lands where it does.
Yogurt is an easy win: lactose-free yogurt is a true 1:1 for dairy fans, and plain coconut or soy-protein yogurt cover dairy-free needs. The one habit worth keeping is label-reading on the plant-based tubs — inulin and chicory root fibre sneak into a lot of "gut-friendly" yogurts and undo the whole point. Skip the flavoured fruit yogurts too; they usually pile high-FODMAP fruit and syrups on top of the lactose.
Lactose-free yogurt is the best choice — it's real dairy without the lactose. Plain coconut yogurt and soy yogurt made from soy protein are good dairy-free options. Avoid regular and Greek yogurt during elimination, and check plant-based tubs for added inulin or chicory root fibre.
No. Although straining removes some whey, Greek yogurt still contains enough lactose to be high FODMAP in a normal serving. Choose lactose-free Greek-style yogurt for the same thick, high-protein result without the lactose.
Usually, but not automatically. Plain coconut yogurt is low-FODMAP in a normal serving, but some brands add inulin or chicory root fibre as a thickener, both of which are high in fructans. Read the ingredient list and pick a plain version.
This page is for general cooking and information only and is not medical advice. FODMAP content varies with ripeness, processing, and brand, and serving size is what determines tolerance. Always work with your doctor or a registered dietitian on dietary changes for IBS.
