"Vegetarians are weak and lack energy."...This comment is far from the truth. In general, vegetarians have more energy than meat eaters because their diets tend to be lighter and use less of the body's energy to digest. Think about it...how much energy do you have after a big meal of steak and mashed potatoes? You would probably want to unbutton your pants and lounge on the couch for awhile. That's your body telling you that it needs all the energy it can muster to digest the food you just ate. Also, carnivors have short digestive systems made to digest meat before it begins to rot. The human digestive system is long and is more suited for the digestion of plant matter, so when you consume meat it sits in your digestive system and begins to rot long before it's used by the body. As for being weak, check out Mike Mahler, a aggressive strength coach, 15 year vegetarian and 10 year vegan -
http://www.mikemahler.com/ Or how about
Mac Danzig, UFC champ, voted one of the top 25 fittest men in America by Men's Fitness Magazine and a vegan. Even NFL all-star tight-end
Tony Gonzalez is a 247lb vegan! It's hard to call guys like that "weak."