Why children under 3 do not get lactase deficiency

Subject: Why children under 3 do not get lactase deficiency

Date: Tue Mar 15 01:30:27 2005
Posted by Chen
Grade level: undergrad School: Tsinghua Univ
City: Beijing State/Province: China Country: No country entered.
Area of science: Evolution
ID: 1110871827.Ev

Message:


I know there are lots of people can't enjoy milk because of lactase deficiency
syndrome. My question is why these people didn't have that problem when they are
still babies. Is it a gene controled thing that when people grow old( usually up
to 7-8 years old) their body begin to generate less lactase? Thx

Re: Why children under 3 do not get lactase deficiency

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