Although the remark is irrelevant to the subject in hand, one is tempted to point out that, quite apart from the question of hygiene, the idea of eating flesh containing sores and wounds, bruises and pus-polluted tissues, is altogether repulsive to the imagination.
Let it be supposed, however, that meat can be, and from the meat-eater's point of view, should be and will be under proper conditions, uncontaminated, there yet remains the question whether such food is physiologically necessary to man. Let us first consider what kind of food is best suited to man's natural constitution.
II
PHYSICAL CONSIDERATIONS
There are many eminent scientists who have given it as their opinion that anatomically and physiologically man is to be classed as a frugivorous animal. There are lacking in man all the characteristics that distinguish the prominent organs of the carnivora, while he possesses a most striking resemblance to the fruit-eating apes. Dr. Kingsford writes: 'M. Pouchet observes that all the details of the digestive apparatus in man, as well as his dentition, constitute "so many proofs of his frugivorous origin"—an opinion shared by Professor Owen, who remarks that the anthropoids and all the quadrumana derive their alimentation from fruits, grains, and other succulent and nutritive vegetable substances, and that the strict analogy which exists between the structure of these animals and that of man clearly demonstrates his frugivorous nature. This view is also taken by Cuvier, Linnæus, Professor Lawrence, Charles Bell, Gassendi, Flourens, and a great number of other eminent writers.' (see The Perfect Way in Diet.)
Linnæus is quoted by John Smith in Fruits and Farinacea as speaking of fruit as follows: 'This species of food is that which is most suitable to man: which is evidenced by the series of quadrupeds, analogy, wild men, apes, the structure of the mouth, of the stomach, and the hands.'
Sir Ray Lancaster, K.C.B., F.R.S., in an article in The Daily Telegraph, December, 1909, wrote: 'It is very generally asserted by those who advocate a purely vegetable diet that man's teeth are of the shape and pattern which we find in the fruit-eating, or in the root-eating, animals allied to him. This is true.... It is quite clear that man's cheek teeth do not enable him to cut lumps of meat and bone from raw carcasses and swallow them whole. They are broad, square-surfaced teeth with four or fewer low rounded tubercles to crush soft food, as are those of monkeys. And there can be no doubt that man fed originally like monkeys, on easily crushed fruits, nuts, and roots.'
With regard to man's original non-carnivorous nature and omnivorism, it is sometimes said that though man's system may not thrive on a raw flesh diet, yet he can assimilate cooked flesh and his system is well adapted to digest it. The answer to this is that were it demonstrable, and it is not, that cooked flesh is as easily digested and contains as much nutriment as grains and nuts, this does not prove it to be suitable for human food; for man (leaving out of consideration the fact that the eating of diseased animal flesh can communicate disease), since he was originally formed by Nature to subsist exclusively on the products of the vegetable kingdom, cannot depart from Nature's plan without incurring penalty of some sort—unless, indeed, his natural original constitution has changed; but it has not changed. The most learned and world-renowned scientists affirm man's present anatomical and physiological structure to be that of a frugivore. Disguising an unnatural food by cooking it may make that food more assimilable, but it by no means follows that such a food is suitable, let alone harmless, as human food. That it is harmful, not only to man's physical health, but to his mental and moral health, this book endeavours to demonstrate.
With regard to the fact that man has not changed constitutionally from his original frugivorous nature Dr. Haig writes as follows: 'If man imagines that a few centuries, or even a few hundred centuries, of meat-eating in defiance of Nature have endowed him with any new powers, except perhaps, that of bearing the resulting disease and degradation with an ignorance and apathy which are appalling, he deceives himself; for the record of the teeth shows that human structure has remained unaltered over vast periods of time.'