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A 25-year-old male asked:

Today my lactose intolerance breath test of 5 hours result is positive but two years back with my blood test report was positive with food allergy ?

1 doctor answer3 doctors weighed in
Dr. Thomas Klein
Allergy and Immunology 43 years experience
2 different things: Lactose intolerance is due to inability or decreased ability to digest milk sugar also called lactose. Allergy tests to milk indicate the presence or absence of ige to milk protein. In other words, allergy tests show if you have an allergy or sensitivity to milk protein and have nothing to do with lactose or milk sugar. You can be lactose intolerant and allergic to milk at the same time.
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Last updated Oct 6, 2014


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