A 35-year-old member asked:
Disclaimer

what causes lactose intolerance?

1 doctor answer
Dr. Lee Perry
Dr. Lee Perry answered
16 years experience Allergy and Immunology
Intestinal enzyme: People with lactose intolerance lack an enzyme in the intestine that breaks down lactose.
Answered on Jun 9, 2013
6
6 thanks

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month

Related questions:

A 31-year-old member asked:
Dr. Linda Green
44 years experience Pediatric Allergy and Asthma
Lactase deficiency: Lactose intolerance is caused by a deficiency of the enzyme lactase normally found in the gut which is needed to digest milk sugar or lactose found in ... Read More
2
2 thanks
A 42-year-old member asked:
Dr. Jack Mutnick
16 years experience Allergy and Immunology
Lactose Intolerance : Lactose intolerance is due to the loss of the lactase enzyme responsible for breaking down lactose in dairy. Lactose is the primary sugar in dairy. It ... Read More
1
1 thank
A 44-year-old member asked:
Dr. Lee Perry
Dr. Lee Perry answered
16 years experience Allergy and Immunology
Lactase deficiency: Lactose intolerance is due to a deficiency of lactase, which is the intestinal enzyme that helps you digest lactose.
1
1 comment
1
1 thank
A 28-year-old male asked:
Dr. Mila McManus
20 years experience Family Medicine
No, but....: Lactose tolerance is a lack of enzyme lactase in the GI tract. Drinking mill doesn't cause this, but by definition, if lactose intolerant, u should a ... Read More
4
4 thanks

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
Unlimited visits
$10/month