Oh BS.. Grow a brain...
Man has always been an omnivore and hasn't been able to go vegan until the past few centuries thanks to refrigeration and transportation.
You tools are entirely missing the point here.. All Antibiotics kill gut flora... Researchers are finding this is bad for us as it whacks out our cholesterol and fat and can affect the way we process carbs, etc.... This is not a debate on veganism... Veganism is bad for omnivores, it causes health issues over the long term. Moderation in everything is good and antibiotics are only good when used in smart and specific ways (not used in mass on all our animals).