24. The third requirement in the selection of food, namely, its
digestion and absorption, depends considerably on the persons who are to
be fed. Food that is chosen for adults entirely would not be the same as
that intended for both young persons and adults; neither would food that
is to be fed to children or persons who are ill be the same as that
which is to be served to robust adults who do a normal amount of work.
No hard-and-fast rules can be laid down here for this phase of
food selection, but as these lessons in cookery are taken up in turn,
the necessary knowledge regarding digestibility will be acquired.
[Illustration: Composition of food materials]
[Illustration: Composition of food materials]
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