Edible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that this enables the mass of food to pass smoothly through the tube leading from the mouth into the stomach.
Eating is not merely a material pleasure. Eating well gives a spectacular joy to life and contributes immensely to goodwill and happy companionship. It is of great importance to the morale.
A mistake a lot of girls make is that they work out but don't eat enough. If you're not eating enough, all the work outs are doing, it's not going to show.