One of the many reasons why flesh-eating is deleterious is that flesh is an ill-balanced food, containing, as it does, considerable protein and fat, but no carbohydrates or neutralising salts whatever. As the body requires three to four times more carbohydrates than protein, and protein cannot be properly assimilated without organic minerals, it is seen that with the customary 'bread, meat and boiled potatoes' diet, this proportion is not obtained. Prof. Chittenden holds the opinion that the majority of people partake greatly in excess of food rich in protein. No hard and fast rule can be laid down to different persons require different foods and foods and amounts at different times under different +-----------------------------------------------------------------------+ |[Transcriber's note: It is regretted that a line has been missed by the| |typesetter.] | +-----------------------------------------------------------------------+ regulate the amount, or proper proportions, of food material for a well-balanced dietary, as amounts, and the same person requires different ferent conditions. Professor W. O. Atwater, an American, makes the following statement: 'As the habits and conditions of individuals differ, so, too, their needs for nourishment differ, and their food should be adapted to their particular requirements. It has been estimated that an average man at moderately active labor, like a carpenter, or mason, should have (daily) about 115 grams (1750 grains) or 0.25 pound of available protein, and sufficient fuel ingredients in addition to make the fuel value of the whole diet 3,400 calories; while a man at sedentary employment would be well nourished with 92 grams (1400 grains) or 0.20 pound of available protein, and enough fat and carbohydrates in addition to yield 2,700 calories of energy. The demands are, however, variable, increasing and decreasing with increase and decrease of muscular work, or as other needs of the person change. Each person, too, should learn by experience what kinds of food yield him nourishment with the least discomfort, and should avoid those which do not "agree" with him.' It has been stated that unless the body is supplied with protein, hunger will be felt, no matter if the stomach be over-loaded with non-nitrogenous food. If a hungry man ate heartily of _only_ such foods as fresh fruit and green vegetables he might soon experience a feeling of fulness, but his hunger would not be appeased. Nature asks for protein, and hunger will continue so long as this want remains unsatisfied. Similarly as food is the first necessity of life, so is protein the first necessity in food. If a person were deprived of protein starvation must inevitably ensue.