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 == rBST == 

 In the section on rBST, it states: ""IGF-1 is a natural hormone found in the milk of both humans and cows causing the quick growth of infants.""  I've added a ""citation needed"", because this sentence seems to imply that the rapid growth of infants is due to the presence of IGF-1 in their milk.  This is not correct; IGF-1 is produced endogenously in response to somatotropin, and infants on formula (IGF-1 free) continue to grow rapidly.  See the Wikipedia entry: Insulin-like Growth Factor  
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