Is Lactose Low FODMAP?
AvoidNo. Lactose, the sugar found in milk, is considered high FODMAP at a normal serving size. The Low FODMAP Diet is not a dairy-free diet, however, so you can enjoy some dairy foods like aged cheese or lactose-free dairy alternatives which are treated with a lactase enzyme at the time of processing.
Lactose and the Low FODMAP Diet
Lactose is a disaccharide sugar composed of glucose and galactose, naturally present in milk and dairy products. It is a significant energy source in human diets, particularly for infants. People with lactose intolerance lack sufficient levels of lactase, the enzyme needed to break down lactose in the digestive system, leading to gastrointestinal symptoms. For those following a low FODMAP diet, lactose intake may need to be minimized or managed, although the diet is not entirely dairy-free.
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- Evidence-based. Diet compatibility ratings are compiled from peer-reviewed nutrition guidance, dietary association recommendations, and ingredient composition data.
- Continuously updated. Our ingredient database is refreshed as new sources and product data become available.
- Transparent uncertainty. When an ingredient's safety depends on serving size, preparation, or sub-ingredients, we mark it “caution” rather than forcing a binary answer.
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