How do you go meat-less in a healthy way, then?
Jackson, Dieffenbach and Geyser all agree that the best way to approach a meat-free diet is to become informed. Read up as much as you can on the subject and, if possible, consult with a nutritionist or dietician. “Vegans must be even more careful about planning their meals to avoid creating deficiencies of certain vitamins and minerals, especially vitamins B12 and zinc, which are commonly found in animal products,” says Geyser. Most experts suggest that vegans take a B12 supplement.

Bottom line? If it’s weight loss you’re after, saying bye-bye to meat isn't necessarily the way to go and may even set you up for more food-based difficulties. But if it's about saving animals or resources or something you really care about, just make sure you get your protein, iron, and all the other "goods" found in meat somewhere else. Be informed, be healthy, and most of all honor your body.

Which famous faces have taken on the veggie lifestyle (and who’s shunning it)? Find out here!