Economic and financial section > Problem of nutrition

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The protein should be derived from a variety of sources, and it is
desirable that a part of the protein should be of animal origin.
During growth, pregnancy and lactation, some animal protein
is essential, and in the growing period it should form a large
proportion of the total protein.
The following allowances of total protein are recommended:
Age (years) Grammes per kilogramme
of body-weight
1-3 3.5
3-5 3.0
5-12 2.5
12-15 1 2.5 1
15-17 2.0
17-21 15
21 and upwards .... 1.0
Women:
Pregnant — 0-3 months 1.0
4-9 months 1.5
Nursing 2.0
3. Fat Requirements.
Fat must be a constituent of the normal diet, but the data at
present available do not suffice to permit a precise statement of
the quantity required. The high content of vitamins A and/or D
in certain fats justifies their use in liberal amounts.
4. The Influence of Climate on Dietary Requirements.
In cold climates, the energy-content of the diet may need to be
increased. Where climatic conditions or social customs do not
permit of exposure to sunshine, vitamin D should be supplied
in the diet.
1 See footnote i, page 14.