Diseases resulting from nutrient deficiencies or excesses

==== Malnutrition is defined as a nutritional disorder due to an absolute or relative deficiency or excess of nutrients or their imbalance. Malnutrition can be divided from several points of view: ====


 * Malnutrition from malnutrition - lack of nutrients.
 * Malnutrition - excess nutrients.


 * General malnutrition - arises from a lack or excess of energy in the diet (protein energy malnutrition, obesity).
 * Specific malnutrition - arises from a deficiency or excess of individual nutrients.


 * Primary (exogenous) malnutrition - caused by insufficient or excessive supply of nutrients. Some of the primary malnutrition affects millions of people.
 * Secondary (endogenous) malnutrition - arises due to disorders of nutrient absorption, disorders of nutrient utilization ( enzyme defects ), nutrient interactions with drugs. Compared to some primary malnutrition, they are rare. Environmental factors (xenobiotics, smoking ) can also contribute to malnutrition.

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