问题是很多人其实酶的水平不是零。所以还是能吃一些奶制品的
http://www.mayoclinic.org/diseases-conditions/lactose-intolerance/basics/definition/con-20027906
http://digestive.niddk.nih.gov/ddiseases/pubs/lactoseintolerance/
问题是很多人其实酶的水平不是零。所以还是能吃一些奶制品的
http://www.mayoclinic.org/diseases-conditions/lactose-intolerance/basics/definition/con-20027906
http://digestive.niddk.nih.gov/ddiseases/pubs/lactoseintolerance/
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