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Patient Education1 min read

Lactose Intolerance

Overview

Lactose intolerance means your body can't fully digest lactose — the sugar found in milk and dairy products. This happens because you don't produce enough lactase, the enzyme that breaks down lactose. It's very common (especially in the Middle East) and is not the same as a milk allergy. It's not dangerous, but can be uncomfortable.

Symptoms

1

Bloating and gas after dairy

2

Diarrhea or loose stools

3

Abdominal cramps

4

Nausea after consuming milk products

5

Symptoms appear 30 min to 2 hours after dairy

Common Causes

Genetic — lactase production decreases with age (primary)

Damage to small intestine from illness (secondary)

Very common in Middle Eastern, Asian, and African populations

Not related to milk allergy (which involves the immune system)

Self-Care Tips

Try lactose-free milk and dairy products

Take lactase enzyme supplements before eating dairy

Yogurt and aged cheeses are usually better tolerated

Read food labels for hidden lactose

Ensure adequate calcium from non-dairy sources

Start with small amounts of dairy to find your tolerance level

When to See a Doctor

See a doctor if you're unsure whether it's lactose intolerance or a milk allergy, or if symptoms persist despite avoiding dairy (may indicate another condition).

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