The acids of fruits are valuable as stimulants both to the appetite and
to the digestion. Then, too, they give a touch of variety to a menu
otherwise composed of rather bland foods. The stimulation they produce
is much more healthful than that of condiments, drugs, or alcoholic
beverages and should receive the preference.
_Vitamines_ are substances necessary for both growth and health. A child
deprived of the foods containing them is usually not well and does not
grow nor develop normally. These substances are also required in the
diet of adults in order to maintain the body in a healthy condition. The
leafy vegetables and milk are the foods that yield the greatest supply
of vitamines. In fact, it is claimed by those who have experimented most
with this matter that these two sources will supply the required amount
of vitamines under all conditions.
* * * * *
BALANCING THE DIET
QUANTITY AND PROPORTION OF FOODS
35. FACTORS INFLUENCING FOOD.--Numerous factors affect the kind and
quantity of food necessary for an individual. Chief among these are age,
size, sex, climate, and work or exercise.
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