Galen remarks that the fleshy parts of quadrupeds form the best blood. When boiled, he says, it supplies the body with more juicy, and when roasted, with drier food. The temperament of domesticated animals, he adds, is more humid or juicy than that of wild, owing to the dampness of the atmosphere in which they live, and their inactivity. For wild animals among the mountains being exposed to privations and fatigue, their flesh is drier, contains no fat, and is less disposed to putrefaction than the flesh of domesticated animals. He states that of all animals, whether fowls or beasts, the flesh of such as are growing is better than those which are past their utmost growth; that such as are at their growth hold an intermediate character; but that the flesh of such as are very young or old is bad, because, in the latter case, it is hard, dry, and fibrous, whence it is difficult to digest, and not nutritious; while, on the other hand, the bodies of very young animals, being mucous (gelatinous?), watery, and therefore excrementitious, readily pass through the bowels undigested. Actuarius states that animals which lead an indolent life are more humid and excrementitious; whereas such as are much exercised are drier and lighter. Upon the whole, he adds, the more the colour of flesh declines from white, the farther is it removed from wholesomeness; it is also to be known that wild animals are hotter and drier than domesticated. Haly Abbas says that the flesh of all animals is heating and humid, forms much blood, and is nutritious. Avicenna remarks that flesh strengthens the body, and is readily converted into blood. According to Rhases, flesh is the most nutritious of all aliments, and disposes most to plethora; hence, those who live much upon it require frequent venesection, especially if at the same time given to drinking wine.