I buy organic where possible. However a friend I was talking to this morning says her sister (admittedly a vegetarian, but not sure that matters)says that organic meat/poultry and therefore dairy is a no-no because they don't treat them for worms and other infestations/illnesses as they can't give them antibiotics and other medication. So we should buy "free-range" instead. Is this total twaddle or is there some truth in this?