This article is from the Food Science FAQ, bypking123@sympatico.ca (Paul E. J. King) with numerous contributions by others.
A good diet is a balanced one; lots of different foods and not
too much of any one food. That way you get all the nutrients that you
need. Many countries have guidelines for healthy diets, including in
some cases recommended daily amounts of specific nutrients. However,
it is emphasised that these are for healthy individuals, not for
those with disease symptoms, food allergies, or intolerances. These
people should consult a dietitian or physician.
 
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