A 41-year-old member asked:
can you tell me how the inability to breakdown lactose parallel our ability to metabolize starch, but not cellulose?
1 doctor answer
Dr. Jeffrey Gross answered
28 years experience Neurosurgery
Genetics of enzymes: Human's cannot successfully breakdown cellulose. We have enzymes to breakdown and metabolize other starches and sugars, although some pathways may be deficient if there is a genetic defect for the specific enzymatic process, most commonly seen with lactose intolerance. Note that some of these enzymes are also produced by gut bacteria.
Answered on Aug 18, 2020
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