What is lactose intolerance?

Lactose intolerance is the inability for a patient to digest a the milk sugar called lactose says Lisa Ganjhu, DO, a gastroenterologist at NYU Langone Medical Center. Learn more in this video.

Up Next

What is celiac disease?
How are lactose intolerance and dairy allergies diagnosed?
How is irritable bowel syndrome (IBS) treated?
What is an ulcer?
How do I know if I have a digestive enzyme deficiency?
How serious is irritable bowel syndrome (IBS)?
How long can I take medications to treat GERD?
Got IBS? get to know FODMAPs
Which symptoms of abdominal pain are causes for concern?
What causes symptoms of heartburn and GERD?

Up Next

What is celiac disease?
How are lactose intolerance and dairy allergies diagnosed?
How is irritable bowel syndrome (IBS) treated?
What is an ulcer?
How do I know if I have a digestive enzyme deficiency?
How serious is irritable bowel syndrome (IBS)?
How long can I take medications to treat GERD?
Got IBS? get to know FODMAPs
Which symptoms of abdominal pain are causes for concern?
What causes symptoms of heartburn and GERD?

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© 2026 Sharecare, Inc.