Take, for example, milk. It has won from the ablest writers on dietetics the title of the One Perfect Food for the human race. Specialists on dyspepsia prescribe an almost exclusive milk diet for obstinate cases. In typhoid fevers it is the specific regimen. One man consumes inordinate quantities, by advice, to increase adipose tissue. A woman lives upon skim milk, swallowed very slowly, to reduce her flesh. And so on through multifarious cases—all acting upon the recommendation of experts.
All the time, as each of us knows, certain stomachs can not digest milk, or even retain it long enough to test its nutritive properties, while in others it causes intense heartburn and engenders bile.
Toast and tea are the stock invalid diet, the civilized world over. Yet Medical Daniels (M. D.’s) are rising up by the score to protest against ruining stomachs with tannic acid and burdening digestive organs by forcing what is no better than dry sawdust upon them.
Chocolate is freely prescribed as digestible, and so nutritious that one could live and not lose flesh, eating nothing else, for weeks together.
I am acquainted personally with ten people at least, to whom any form of chocolate is poisonous and abhorrent to every sense.
Natives of the land where the cocoa palm grows virtually subsist upon the nuts, and many in other lands devour the imported cocoanut with impunity. The fatty flesh acts upon some stomachs with the virulence of glass filings, producing terrible cramps and even convulsions.
A noted teacher of culinary lore strenuously recommends our native nuts, walnuts, filberts, hazelnuts, chestnuts, and so forth, raw, and cooked in various ways as a substitute for meat. The innovation is daring, and opposed to the conclusion based upon the observation and experience of scores of other writers, to the effect that nuts are hurtful to six people out of ten, the oils, and the cells which contain the oils, difficult of digestion by any save the strongest stomach.
It is much the fashion with writers upon domestic economy to extol fish as more economical and more easily digested than flesh, besides being rich in the phosphates needed to repair the waste of brain force.
Some people who would scout the imputation of invalidism can not eat even fresh fish without experiencing symptoms not unlike ptomaine poisoning. I recall the case of one woman who was extremely fond of oysters, yet dared not touch them for fear of fatal consequences. I once saw her faint away an hour after she had eaten half a dozen.
Who shall decide when dietists and individual digestions disagree so radically as is indicated by these and hundreds of other examples? And by what standard of gastronomic morality shall we gage personal conduct in the government of appetite? Since man must eat to live, and an unimpaired digestion is wealth inestimable—what shall we eat?