Since we have treated of those things, which relieve by evacuation, we must now proceed to those, which nourish us, that is, our food and drink. Now these are not only the common supports in all distempers, but even of health too. And it is of importance to be acquainted with the properties of them all: first, that the healthy may know, in what manner they are to make use of them: secondly, that in treating of the method of curing diseases, it may suffice to mention in general the species of what is to be taken, without being under the necessity of naming each particular upon every occasion.

It is fit to know then, that all leguminous vegetables, and those grains, which are made into bread, are of the strongest kind of food (I call that the strongest, in which there is the most nourishment) also every quadruped, that is tame, all large wild beasts, such as the wild goat, deer, wild boar, wild ass; every great bird, such as the goose, peacock, and crane; all large fishes, the cetus(32), and others of a like size; also honey, and cheese. So that it is no wonder that particular kind of bread(33) should be very strong, which is made of corn, fat, honey, and cheese. Of a middle nature ought to be reckoned those pot-herbs, whose roots or bulbusses we use for food; amongst quadrupeds the hare; all birds, from the least upwards to the phœnicopter(34); also all fish, that will not bear salt, or such, as are salted whole. Of the weakest kind are all potherbs, and whatever grows on a stalk, such as the gourd, and cucumber, and caper, and all the apple kind, olives, snails(35), and also conchylia(36).

But although these are thus distinguished, yet there are great differences between things even of the same class; and one is either more substantial, or weaker than another. For instance, there is more nourishment in bread, than in any thing else. Wheat is more firm than millet: and that again than barley: and the strongest kind of wheat is the siligo(37); after that the finest flour; next, that which has nothing taken from it, which the Greeks call autopyron[ AX ]: still weaker than these is the second flour: the weakest is grey bread. Amongst the leguminous vegetables the bean or lentil is more substantial than pease. Amongst the potherbs, turnep and navew gentle, and all the bulbous kind (in which I rank the onion also, and garlick) are more substantial than the parsnip, or that which is particularly called radicula (garden radish.) Also cabbage, and betes, and leeks, are stronger than lettuce, or gourd, or asparagus. But amongst the fruits of the surculous tribe, grapes, figs, nuts, dates, apples properly so called, are of the firmer kind. And amongst these the juicy are stronger than the mealy(38) fruits. Also of these birds, which are of the middle kind, those are stronger, which make more use of their feet, than their wings: and of those, that trust more to flying, the larger birds are stronger than the small ones, as the beccaficos, and thrush(39). And those also, which live in the water, afford a lighter food than those, which cannot swim. Amongst the tame animals pork is lightest; beef heaviest. Also of the wild, the larger any animal is, so much the stronger food it is. And of those fishes also, which are of the middle kind, the heaviest, though we make most use of them, are first all those, that are made salsamenta(40), such as the lacertus(41); next such, as though more tender than the other, yet are in themselves hard, as the aurata, corvus, sparus, oculata; in the next rank are the plani fish, after which lighter still are lupi and mulli: and then all rock fish.

And there is not only a difference in the classes of things, but also in the things themselves; which arises from their age, the different parts of their body, the soil, air, and the case they are in. For every four footed animal(42), that is sucking, affords less nourishment; also a dunghill fowl, the younger it is. In fish too, the middle age, before they have reached their greatest bulk. For the parts, the heels, cheeks, ears, and brain of a hog; of a lamb or kid, the whole head with the petty toes, are a good deal lighter than the other parts; so that they may be ranked in the middle class. In birds, the necks or wings are properly numbered with the weakest. As to the soil, the corn, that grows upon hilly parts, is stronger than what grows upon a plain. Fish got in the midst of rocks, is lighter than those in the sand; those in the sand, than those in the mud. Whence it happens, that the same kinds either from a pond, or lake, or river, are heavier: and that, which lives in the deep, is lighter than one in shoal water. Every wild animal also is lighter than a tame one: and whatever is produced in a moist air, than another in a dry. In the next place, all the same foods afford more nourishment, fat than lean; fresh more than salt; new than stale. Again, the same thing nourishes more, when it is stewed into broth, than roasted, more roasted than fried. A hard egg is of the strongest kind; soft, or sorbile(43) of the weakest. And though all grains, made into bread, are most firm, yet some kinds washed, as alica(44), rice, ptisan, or gruel made of the same, or pulse(45), and bread moistened with water, may be reckoned with the weakest.

With regard to drinks, whatever is prepared from grain, also milk, mulse, defrutum, passum(46), wine either sweet or strong, or must, or very old wine, are of the strongest kind. But vinegar, and wine a few years old, or austere, or oily, is of the middle kind. And therefore none of these should be given to weak people. Water is weakest of all. And the drink, that is made of grain, is stronger in proportion to the hardness of the grain itself: and that wine, which is produced in a good soil, more so than in a poor soil; or in a temperate air, than one, which is either over moist or too dry, and either over cold or too hot. Mulse, the more honey it contains, defrutum, the more it is evaporated in boiling, and passum, the drier the grape is from which it is prepared, are so much the stronger. Rain water is lightest; next spring water, then river water, then that of a well; after these snow, or ice; water of lakes is heavier than these; and that of fens heaviest of all. The trial is both easy and necessary to those, that want to know its nature. For the lightness appears from weighing it; and amongst those, that are of equal weight, the sooner any of them grows hot or cold, and the more quickly herbs are boiled in it, the better it is.

It is a general rule, that the stronger each kind is, so much the less easily it is concocted; but when once concocted, it nourishes more. Wherefore the nature of the food must be determined by the degree of one’s strength; and the quantity proportioned to the kind. Upon this account weak men must make use of the weakest things; a middle kind best supports those, that are moderately strong; and the most substantial is fittest for the robust. Lastly, A person may take a greater quantity of what is lighter: but in what is most substantial, he ought to moderate his appetite.