Abroad, people are suffering not only because they have not enough
food, but because they have not the right kinds of food. Milk and
vegetables and fruits are especially useful. They are the chief
sources of the much-needed _mineral salts_ and the two _vitamines_.
The vitamines are substances of great importance about which has
centred much discussion lately and which scientists do not yet fully
understand, though they realize that they are essential for the growth
of children and for health in adults.
The _protein_ of food is used to build the body if we are young, and
to restore the daily wear and tear if we are older. The mineral salts
are also necessary for this purpose. Protein will be discussed further
in the chapter on meat and meat substitutes, but it should be realized
here that the protein we eat comes not only from these foods, but also
from the cereals. Cereals supply a full half of the protein of many
diets.
Cereals are therefore important for their fuel since they are rich in
starch, and for their protein, and, if we eat the entire kernel, for
their mineral matter and vitamines. They also have the pleasant flavor
and texture which we have grown to like.
Wheat is no better than any of the other cereals. It possesses
absolutely no nutritional advantage for man or beast over oats, corn,
and rye. It has no more protein, and no better protein. It has no more
fat and no better fat.
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