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It does not appear to affect blood sugar or IGF-1: research suggests it promotes fat breakdown without the glucose effects associated with full growth hormone
Conditions including acute hepatitis, cirrhosis, non-alcoholic fatty liver disease (NAFLD), and liver cancer have all been associated with elevated serum B12
When To Take Vitamin B12 (The Best Time of Day)
For hair, apart from cases of deficiency (or certain rare hair disorders in children that responded to biotin), research does not show a significant benefit of extra biotin in otherwise healthy people
The histidine residue in the middle does most of the work
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