Hunter gatherers have been consuming animal products for perhaps millions of years...and agriculturalists drinking milk for at least ten thousand of years. Does it occur to you that we have genetically evolved to consume animal products? Species evolve much more rapidly than was previously thought. Curiously enough, the growth hormone found in cows milk is identical to human growth hormone. This said, we cannot account for the effects of added hormone and Antibiotic treatments given to cows today...as well as the increased levels of hormones released during the abhorrant processes of modern day slaughter houses. White blood count levels increase in certain blood types when animal products are consumed...all rubbish?