72 | 18 | -- | -- | 5 | 1
Veal | 63 | 16 | -- | -- | 16 | 1
White Fish | 78 | 18 | -- | -- | 3 | 1
Salmon | 77 | 16 | -- | -- | 5.5 | 1.5
Egg | 74 | 14 | -- | -- | 10.5 | 1.5
Butter | 15 | -- | -- | -- | 83 | 3
============+=======+=========+========+=======+======+======

It will be noted that meats, cheese, and such vegetables as peas are
high in proteids, while certain other vegetables, as rice and white
flour, are high in starch or carbohydrates. According to the table given
above, a man at moderate work requires 4.1 ounces of proteids and 17.5
ounces of carbohydrates per day. If, then, the carbohydrates were to be
made up entirely from potatoes, 18 per cent of which is starch and he
should need 17.5 ounces, he must have 100/18 of 17.5 or 97 ounces of
potatoes per day, an amount equal to about 6 pounds. If, however, with
the potatoes, he should eat half a pound of bread, of which about half
is carbohydrates or 8 ounces, the amount of potato necessary would be
cut down, and so on with as many combinations as one might choose to
make.

It is curious, however, that when different kinds of food are available,
one naturally combines different articles of food, so as to make up the
well-balanced daily ration, so that the different parts may have the
proper proportion. For instance, butter is always used with bread in
order to add to the proteid and starch of the bread the necessary fat.
With potatoes or rice, either butter or gravy or meat is always used
because potatoes and rice are lacking in proteids as well as in fats
which the meat supplies. Bread and cheese are well known to make up a
good combination, and the table shows why: the bread furnishing the
starch and the cheese the proteid and fat. Eggs alone are a very poor
article of diet since no starch at all is present, and therefore it is
that when eggs are eaten for breakfast, as is so generally the custom
to-day, either a generous helping of cereal ought to be given with the
egg or else a generous supply of bread or toast ought to be included in
the breakfast. Milk is generally considered an ideal article of food,
and yet it contains no starch, and it is undoubtedly because of this
fact that milk and bread is more palatable as well as more nutritious
than milk alone.

_Human appetite._

One other factor needs to be considered in