I will mention one or two of the most common errors among women in charge of sick respecting sick diet.—One is the belief that beef tea is the most nutritive of all articles. Now, just try and boil down a lb. of beef into beef tea, evaporate your beef tea and see what is left of your beef. You will find that there is barely a teaspoonful of solid nourishment to half a pint of water in beef tea; nevertheless there is a certain reparative quality in it, we do not know what, as there is in tea;—but it may safely be given in almost any inflammatory disease, and is as little to be depended upon with the healthy or convalescent where much nourishment is required. Again, it is an ever ready saw that an egg is equivalent to a lb. of meat,—whereas it is not at all so. Also, it is seldom noticed with how many patients, particularly of nervous or bilious temperament, eggs disagree. All puddings made with eggs, are distasteful to them in consequence. An egg, whipped up with wine, is often the only form in which they can take this kind of nourishment. Again, if the patient has attained to eating meat, it is supposed that to give him meat is the only thing needful for his recovery; whereas scorbutic sores have been actually known to appear among sick persons living in the midst of plenty in England, which could be traced to no other source than this, viz.: that the nurse, depending on meat alone, had allowed the patient to be without vegetables for a considerable time, these latter being so badly cooked that he always left them untouched. Arrow-root is another grand dependence of the nurse. As a vehicle for wine, and as a restorative quickly prepared, it is all very well. But it is nothing but starch and water. Flour is both more nutritive, and less liable to ferment, and is preferable wherever it can be used.
Again, milk, and the preparations from milk, are a most important article of food for the sick. Butter is the lightest kind of animal fat, and though it wants the sugar and some of the other elements which there are in milk, yet it is most valuable both in itself and in enabling the patient to eat more bread. Flour, oats, groats,[3] barley, and their kind, are, as we have already said; preferable in all their preparations to all the preparations of arrowroot, sago, tapioca, and their kind. Cream, in many long chronic diseases, is quite irreplaceable by any other article whatever. It seems to act in the same manner as beef tea, and to most it is much easier of digestion than milk. In fact, it seldom disagrees. Cheese is not usually digestible by the sick, but it is pure nourishment for repairing waste; and I have seen sick, and not a few either, whose craving for cheese showed how much it was needed by them.[4]
But, if fresh milk is so valuable a food for the sick, the least change or sourness in it, makes it of all articles, perhaps, the most injurious; diarrhœa is a common result of fresh milk allowed to become at all sour. The nurse therefore ought to exercise her utmost care in this. In large institutions for the sick, even the poorest, the utmost care is exercised. Wenham Lake ice is used for this express purpose every summer, while the private patient, perhaps, never tastes a drop of milk that is not sour, all through the hot weather, so little does the private nurse understand the necessity of such care. Yet, if you consider that the only drop of real nourishment in your patient's tea is the drop of milk, and how much almost all English patients depend upon their tea, you will see the great importance of not depriving your patient of this drop of milk. Buttermilk, a totally different thing, is often very useful, especially in fevers.
In laying down rules of diet, by the amounts of "solid nutriment" in different kinds of food, it is constantly lost sight of what the patient requires to repair his waste, what he can take and what he can't. You cannot diet a patient from a book, you cannot make up the human body as you would make up a prescription,—so many parts "carboniferous," so many parts "nitrogeneous" will constitute a perfect diet for the patient. The nurse's observation here will materially assist the Doctor—the patient's "fancies" will materially assist the nurse. For instance, sugar is one of the most nutritive of all articles, being pure carbon, and is particularly recommended in some books. But the vast majority of all patients in England, young and old, male and female, rich and poor, hospital and private, dislike sweet things,—and while I have never known a person take to sweets when he was ill who disliked them when he was well, I have known many fond of them when in health who in sickness would leave off anything sweet, even to sugar in tea,—sweet puddings, sweet drinks, are their aversion; the furred tongue almost always likes what is sharp or pungent. Scorbutic patients are an exception. They often crave for sweetmeats and jams.
Jelly is another article of diet in great favor with nurses and friends of the sick; even if it could be eaten solid, it would not nourish; but it is simply the height of folly to take ⅛ oz. of gelatine and make it into a certain bulk by dissolving it in water and then to give it to the sick, as if the mere bulk represented nourishment. It is now known that jelly does not nourish, that it has a tendency to produce diarrhœa,—and to trust to it to repair the waste of a diseased constitution is simply to starve the sick under the guise of feeding them. If 100 spoonfuls of jelly were given in the course of the day, you would have given one spoonful of gelatine, which spoonful has no nutritive power whatever.
And, nevertheless, gelatine contains a large quantity of nitrogen, which is one of the most powerful elements in nutrition; on the other hand, beef tea may be chosen as an illustration of great nutrient power in sickness, co-existing with a very small amount of solid nitrogenous matter.
Dr. Christison says that "every one will be struck with the readiness with which" certain classes of "patients will often take diluted meat juice or beef tea repeatedly, when they refuse all other kinds of food." This is particularly remarkable in "cases of gastric fever in which," he says, "little or nothing else besides beef tea or diluted meat juice" has been taken for weeks or even months, "and yet a pint of beef tea contains scarcely ¼ oz. of anything but water,"—the result is so striking that he asks what is its mode of action? "Not simply nutrient—¼ oz. of the most nutritive material cannot nearly replace the daily wear and tear of the tissues in any circumstances. Possibly," he says, "it belongs to a new denomination of remedies."[5]
It has been observed that a small quantity of beef tea added to other articles of nutrition augments their power out of all proportion to the additional amount of solid matter.
The reason why jelly[6] should be innutritious and beef too nutritious to the sick, is a secret yet undiscovered, but it clearly shows that careful observation of the sick is the only clue to the best dietary.