Shakespeare was correct when he wrote, "One man's meat is another man's poison." (in Walsh, 2000) For instance, "some of us are genetically suited for a vegetable-based diet and others are not. Some people can satisfy their nutritional needs by diet alone and others must have nutritional supplements to overcome genetic aberrations" (Walsh, 2000). On the other hand, serious health problems may develop if a person overconsumes nutrients. After having studied the biochemical individuality of 10,000 persons, Walsh came to a decision that the greatest trouble is typically caused by nutrients that are stored in exceeding amounts, rather than by the lack of them .
Due to genetic dissimilarity in the way human body processes foods, vast majority of people are to a certain extent deficient in some nutrients and overloaded in others. Even following an ideal diet, many people have some nutrients at extremely low levels, much lower than the concepts of adequate nutrition and optimum nutrition require. The nutrients which are stored in exceeding amounts in one's body should be avoided by them, keeping from certain kinds of food and vitamins. The most widespread nutrients in overload are following substances: iron, copper, folic acid, manganese, choline, a variety of fatty acids and methionine. ...Show more