Читать книгу Dietetics for Nurses - Fairfax T. Proudfit - Страница 31

Protein	25.000 grams or more
Phosphorus	00.480 gram or more
Calcium	00.250 gram or more
Iron	00.005 gram or more

Vitamine Needs.—We have seen the manner in which the energy and protein foods have been adjusted in the diet, but these can not alone assure the body, and especially the growing body of a normal maintenance and repair of its tissue, or support the growth which is essential at this time. This function is believed to belong to the vitamines, since feeding experiments have demonstrated the fact that animals soon cease to grow, develop deficiency diseases, and finally die, when deprived of the essential constituents. Gillett advises, as a safe rule, the use of one, and preferably two foods known to be rich in the fat soluble vitamine, in each day’s food allowance, milk and leafy vegetables, for example. If the foods containing phosphorus, calcium, and iron are taken in sufficient quantity, the second, or “B” vitamine needs, will probably be adequately covered, but the presence of the “C” vitamine must be carefully attended to; some fresh fruit or vegetables (see table) is obligatory each day to insure the individual against the development of scurvy.

Factors Affecting the Food Selection.—The estimation of the energy needs of the body, and the selection of the foods to furnish the fuel for this purpose, depend largely upon the individual. The digestion of the fats, as well as the way in which the body utilizes them, makes the use of this foodstuff more or less limited according to the ability of the individual to take care of them, the minimum allowance for children being between 2 and 3 ounces per day. According to Gillett, “If boys and girls get at least this amount from butter and its substitutes, cream, bacon, fat meat and oils, additional amounts from their food will provide a margin of safety, without overtaxing the digestive system.”

After determining the amount of fat required in each day’s food allowance, it is a simple matter to adjust the carbohydrates. It is safer from a health standpoint, to obtain the greater portion of this foodstuff from starchy foods rather than from the sugars, many foods rich in starch, likewise contain appreciable amounts of protein and fat, whereas sugar is practically one hundred per cent. carbohydrate. The ease, too, with which this substance ferments in the stomach, and the manner in which it destroys the appetite for other foods, makes the use of much of it in concentrated form unadvisable, especially in the diet of children.

The amount of sugar allowed each day, should be limited to an ounce or ounce and a half (2 to 3 tablespoonfuls), and a less quantity is desirable. In order to obtain the best results, with the least deleterious effect on the body, it is advisable to give sugar in dilute form. A piece of pure candy after a meal may not harm the child; but just before, or between meals, as well as the habit of making the breakfast cocoa and cereal of syrup-like sweetness is deplorable, and should in all instances be discouraged.

The American Red Cross recommends the following method for estimating the amount of sugar in the dietary: “Add one-half the weight of such foods as jellies, jams and preserves, and three-quarters the weight of such foods as candy, honey and syrup, to the weight of sugar used.” The amount of sugar consumed, as such, by the adult each day, is not of such paramount importance as it is in the case of children, but even for adults an excessive amount of carbohydrate in this form is not considered advisable from a health standpoint.

In order to assure each member of the family of getting all of the materials needed for the growth, repair and regulation of their bodies, as well as the necessary fuel material with which to run the engine and to maintain the proper body temperature, the following practical method is suggested for the planning of the daily dietary.