FADS AND FALLACIES, Vitamins nutrition, fish and celery for body health and prevention of diseases

According to Food and Drug Administration studies involving regular market basket sampling, foods available at ordinary groceries and supermarkets contain ample quantities of vitamins. Many food additives are now in use. Times and distances involved in getting products from farm to consumer are often great, and additives are used by processors to maintain quality. In some cases, they are used to improve quality or add some advantage not found in the natural state. Thus, some foods are fortified with vitamins and minerals.

Flavoring agents may be employed to add taste appeal. Preservatives have to be used for some foods that would otherwise be spoiled by organisms or would undergo undesirable chemical changes before use. Emulsifiers may be added to bakery goods to achieve fineness of grain; and stabilizers and thickeners, such as pectin and vegetable gums, may be used for maintaining texture and body. A federal food additives law requires that additives be tested and proved safe for consumption before they may be used. Much remains to be learned about additives-and much, too, about safe use of pesticides, but on a realistic basis, with a growing population, we need both additives and pesticides and must learn to use them to best advantage.

FADS AND FALLACIES

 Perhaps no other area of human concern is as surrounded with fads and fallacies as nutrition. We have had blacks trap molasses and wheat germ offered as virtual panaceas and, more recently, vinegar and honey. Although no food has any special health virtue all its own, it would be hard to find any that at some time or other has not been touted as such. Do oysters, raw eggs, lean meat, and olives increase a man's potency?

Hardly, they have their nutrient values but confer no special potency benefits. Are fish and celery brain foods? The idea could have arisen because brain and nerve tissue are rich in phosphorus, and fish provides phosphorus-containing materials. But so do meat, poultry, milk, and eggs. And celery, it turns out, has relatively little phosphorus. 

Are white eggs healthier than brown? The fact is that the breed of hen determines eggshell color, and color has nothing to do with nutritive value. Some magical powers once attributed to foods have been explained by scientific research. For example, lemons and limes were once considered panaceas for scurvy; it is their vitamin C content, of course, which did the work. Rice polishing was indeed fine for preventing beriberi, but solely because of their vitamin B1 content. 

Goiter was once treated with sea sponge, and the seeming magic stemmed not from something unique about sponge, but from its content of iodine. Food myths arise, too, from distortions of scientific fact. Thus, carrots considered to be good for the eyes.

They are-in cases of vitamin A deficiency. The yellow pigment of carrots, carotene, is converted by low body into vitamin A, which is needed to produce a pigment for the retina of the eye. Incidentally, carotene is plentiful, too, in green vegetables where the yellow color is masked by chlorophyll. Food fads and fallacies might be amusing were it not for the danger that they can interfere with the selection of a proper diet.