1 of 2 Although some historians and anthropologists say that man is historically omnivorous, our anatomical equipment * teeth, jaws, and digestive system favors a fleshless diet. The American Dietetic Association notes that "most of mankind for most of human history has lived on vegetarian or near-vegetarian diets." And much of the world still lives that way. Even on most industrialized countries, the love affair with meat is less than a hundred years old. It started with the refrigerator car and the twentieth-century consumer society. But even with the twentieth century, man's body hasn't adapted to eating meat. The prominent Swedish scientist Karl von Linne states, "Man's structure, external and internal, compared with that of the other animals, shows that fruit and succulent vegetables constitute his natural food." The chart below compares the anatomy of man with that of carnivorous and herbivorous animals. When you look at the comparison between herbivores and humans, we compare much more closely to herbivores than meat eating animals. Humans are clearly not designed to digest and ingest meat. Meat-eaters: have claws Herbivores: no claws Humans: no claws Meat-eaters: have no skin pores and perspire through the tongue Herbivores: perspire through skin pores Humans: perspire through skin pores Meat-eaters: have sharp front teeth for tearing, with no flat molar teeth for grinding Herbivores: no sharp front teeth, but flat rear molars for grinding Humans: no sharp front teeth, but flat rear molars for grinding Meat-eaters: have intestinal tract that is only 3 times their body length so that rapidly decaying meat can pass through quickly Herbivores: have intestinal tract 10-12 times their body length. Humans: have intestinal tract 10-12 times their body length. Meat-eaters: have strong hydrochloric acid in stomach to digest meat Herbivores: have stomach acid that is 20 times weaker than that of a meat-eater Humans: have stomach acid that is 20 times weaker than that of a meat-eater Meat-eaters: salivary glands in mouth not needed to pre-digest grains and fruits. Herbivores: well-developed salivary glands which are necessary to pre-digest grains and fruits Humans: well-developed salivary glands, which are necessary to pre-digest, grains and fruits Meat-eaters: have acid saliva with no enzyme ptyalin to pre-digest grains Herbivores: have alkaline saliva with ptyalin to pre-digest grains Humans: have alkaline saliva with ptyalin to pre-digest grains Based on a chart by A.D. Andrews, Fit Food for Men, (Chicago: American Hygiene Society, 1970) Clearly if humans were meant to eat meat we wouldn't have so many crucial ingestive/digestive similarities with animals that are herbivores. Many people ask me, "If we weren't supposed to eat meat than why do we?". It is because we are conditioned to eat meat. Also, the ADA (American Dietetic Association) tells us that "most of mankind for most of human history has lived on a vegetarian or Lacto-ovo vegetarian diet." A popular statement that meat eaters say is; "In the wild, animals kill other animals for food. It's a part of nature." First of all, we are not in the wild. Secondly, we can easily live without eating meat and killing. We all would be healthier this way. Finally, as I have already shown, we weren't meant to eat meat. Meat putrefies within 4 hours after consumption and the remnants cling to the walls of the intestines for 14-21 days. If a person is suffering from constipation the rotting meat can stay in the intestines for months or years. Furthermore, the saliva in humans is more alkaline, whereas in the case of flesh-eating or preying animals, it is clearly acidic. The alkaline saliva does not act properly on meat. The final point I would like to make on how we as humans were not meant to eat meat is this; all omnivorous and carnivorous animals eat their meat raw. When a lion kills an herbivore for food, it tears right into the stomach area to eat the organs that are filled with blood (nutrients). While eating the stomach, liver, intestine, etc., the lion laps the blood in the process of eating the dead animal's flesh. Even bears that are omnivores eat salmon raw. However, eating raw bloody meat disgust us as humans. This is why we must cook it and season it to buffer the taste of the flesh. If a deer is burned in a forest fire a carnivorous animal will NOT eat its flesh. Even circus lions have to be feed raw meat so that they will not starve to death. If humans were truly meant to eat meat then we would eat all of our meat raw and bloody. The thought of eating such meat makes one’s stomach turn. This is my point on how we as humans are conditioned to believe that animal flesh is good for us and that we were meant to consume it for survival and health purposes. If we are true carnivores or omnivores we would eat animal flesh raw and bloody. Cooking our meat and seasoning it with salt, ketchup, mayo, mustard or tabasco sauce disguise the awful taste of flesh. This is the only way we as humans would eat meat because we refuse to eat it raw and bloody like real carnivores.