What should you know about reversing lactose intolerance?

Lactose is the natural sugar in milk. The small intestine uses lactase to digest it; when lactase is limited, undigested lactose reaches the bowel and can draw in fluid and ferment. This may cause bloating, abdominal pain, rumbling or diarrhoea after dairy. The amount that triggers symptoms varies between people and can change over time.

Temporary intolerance can follow irritation or illness affecting the small intestine. It may ease as the bowel recovers. Lactose intolerance is different from a milk allergy, which involves the immune system and can cause symptoms such as hives, swelling or breathing difficulty.

With professional guidance, try smaller portions, spread dairy through the day, or choose lactose-free products. Yogurt and hard cheeses may be tolerated differently from milk. Keep a food and symptom diary so you can identify your own threshold rather than removing every dairy food automatically.

Protect calcium and vitamin intake when reducing dairy. Nutrition Counselling can help plan suitable alternatives. Food Intolerance Testing may be discussed when the diagnosis is uncertain, but symptoms and a careful dietary assessment remain central to the review.

Arrange medical review for persistent diarrhoea, ongoing abdominal pain, unexplained weight loss, blood in stool, fever or symptoms that occur without lactose. Seek emergency help for facial or throat swelling, wheezing, difficulty breathing, collapse or rapidly spreading hives after milk, because these can suggest an allergic reaction rather than intolerance.

Ask whether your symptoms fit lactose intolerance, whether another bowel condition should be considered, how to test tolerance safely, and how to maintain calcium if dairy intake is reduced.