it's now recommended here that pregnant women don't eat tuna, even canned, what does that tell you? growth hormones to speed up growth/development in cattle, chickens, etc. (to get them to market faster) is wreaking havoc with children's hormones and development (including in milk), my niece started sexually maturing at 7 years old. then there's the antibiotics they give farm animals, not because their sick, but to prevent sickness, that's why so many human diseases are now antibiotic resistant, it's all in the food chain.
