How Do I Know if I Am Lactose Intolerant or Allergic to Milk? Center

Lactose intolerance is caused by a deficiency of an enzyme (lactase) that helps digest the sugar (lactose) in milk. Milk allergy, on the other hand, is an adverse immune reaction to proteins found in milk. The symptoms of the two conditions are different. Read more: How Do I Know if I Am Lactose Intolerant or Allergic to Milk? Article

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