“Human beings are not natural carnivores. When we kill animals to eat them, they end up killing us because their flesh, which contains cholesterol and saturated fat, was never intended for human beings, who are natural herbivores.”

Quoted in Will Tuttle, The World Peace Diet, [//books.google.it/books?id=H_clxwd27CgC&pg=PT107 ch. 5]

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William C. Roberts2

American physician 1932

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“Although most of us conduct our lives as omnivores, in that we eat flesh as well as vegetables and fruits, human beings have characteristics of herbivores, not carnivores. The appendages of carnivores are claws; those of herbivores are hands or hooves. The teeth of carnivores are sharp; those of herbivores are mainly flat (for grinding). The intestinal tract of carnivores is short (3 times body length); that of herbivores, long (12 times body length). Body cooling of carnivores is done by panting; herbivores, by sweating. Carnivores drink fluids by lapping; herbivores, by sipping. Carnivores produce their own vitamin C, whereas herbivores obtain it from their diet. Thus, humans have characteristics of herbivores, not carnivores.”

William C. Roberts (1932) American physician

Twenty questions on atherosclerosis

“We are opposed to all cruelty, so as advocates of non-violence, opponents of oppression, people who abhor the cruelty inherent in slaughtering we say the only ethical way to consume flesh is to pick up the carcass of an animal who has died naturally or been killed accidentally, say by being hit by a car, and eat that.”

Ingrid Newkirk (1949) British-American activist

India Together, July, 2000 http://www.indiatogether.org/reports/peta/newkirk.htm <br class="br">2000

“Were one to stop and think of what meat is, and what it was, it is doubtful if one could eat it. It is merely dead and decaying flesh — flesh from the body of an animal. … Only by the fact that they are covered up, and their true nature concealed by cooking, and basting, and pickling, and peppering and salting can we eat them at all. If we were natural carnivorous animals, we should delight in bloodshed and gore of all kind! … We should eat our flesh warm and quivering — just as it comes from the cow!”

Hereward Carrington (1880–1958) Jersey parapsychologist

Source: The Natural Food for Man, p. 160-161

“On the surface it may seem that wars are caused by economic and political questions, but in fact they are caused by our wholesale slaughter of animals. The laws of justice are inexorable, and human beings are going to have to pay with their own blood … We kill animals, but nature is an organic whole, and by killing animals we are, as it were, affecting certain glands in that organism. When this happens, the balance of the organism is disrupted, and it is not surprising that before long war breaks out among men. Yes, human beings have slaughtered millions of animals for their meat, without realizing that on the invisible plane those animals are linked to other human beings, and it is they who will now have to share the fate of the animals. When we slaughter animals we are slaughtering human beings. Everybody agrees that it is time to establish the reign of peace in the world, that there must be no more wars. Yes, but war will go on just as long as we continue to slaughter animals, because by destroying them we are destroying ourselves.”

Omraam Mikhaël Aïvanhov (1900–1986) Bulgarian philosopher

The Yoga of Nutrition, Editions Prosveta, 2012 ebook edition, pp. 24 https://books.google.it/books?id=jnoVCwAAQBAJ&pg=PT24-25.

“Physiologists have usually represented that our species holds a middle rank, in the masticatory and digestive apparatus, between the flesh-eating and the herbivorous animals; — a statement which seems rather to have been deduced from what we have learned by experience on this subject, than to result fairly from an actual comparison of man and animals. … The teeth of man have not the slightest resemblance to those of the carnivorous animals, except that their enamel is confined to the external surface. He possesses, indeed, teeth called canine, but they do not exceed the level of the others, and are obviously unsuited to the purposes which the corresponding teeth execute in carnivorous animals. … Thus we find that, whether we consider the teeth and jaws, or the immediate instruments of digestion, the human structure closely resembles that of the simiæ; all of which, in their natural state, are completely herbivorous.”

Sir William Lawrence, 1st Baronet (1783–1867) British surgeon

Lectures on Comparative Anatomy, Physiology, Zoology, and the Natural History of Man, Eighth Edition (London: John Taylor, 1840), Section I, Chapter VI, pp. 148-150. Full text online at the Internet Archive https://archive.org/stream/lecturesoncompar00lawr#page/n5/mode/2up.