I think first you have to look at the nutritional requirements of an adult female/male. Then children and teenagers.
All of them will have different requirements at each stage of their life.
This must be done if we are to have a healthy population.
It is relatively easy (?) if you don’t take life stages into account, but much more difficult once you begin to account for growing children and babies, teenagers, pregnancy, very active adult, old age etc.
Last three letters contd - 2026
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