What would be the primary principle of wise diet planning as related to protein nutrition? ?

The answer is moderation principle. Socrates said "Everything in moderation; nothing in excess." And yet over 2,500 years old, this saying still holds accurate. Those who place severe limitations on what they can or cannot eat frequently find it challenging to stick to an arrangement of sensible eating. Depriving yourself of foods rich in fat and sugar is not essential. When eaten on occasion, these treats are not damaging to your health and often provide enough enjoyment to keep one motivated to continue healthy eating practices.

Centration is the correct answer