The early onset of puberty in girls associated with animal protein consumption may be due to endocrine disrupting chemical pollutants in the meat supply.
While animal proteins increase levels of the cancer-promoting growth hormone IGF-1, and most plant proteins bring levels down, "high quality" plant proteins such as soy may not significantly affect..
The reason animal proteins trigger the release of the cancer-promoting growth hormone IGF-1 more than plant proteins may be because the relative ratios of amino acids in animal proteins more closely..