The lack of certain vitamins can cause various medical conditions, even if other aspects of the diet are adequate. Such as:
Mineral deficiencies: Certain minerals are also required in the diet for sound health.
Extreme nutrient deprivation or underfeeding over a long period of time is called as Malnutrition.
Reasons for malnutrition
Malnutrition can also occur due to an inability of the body to absorb nutrients from the food ingested, over an extended period of time. Body’s inability to absorb nutrients is sometimes seen after surgery or trauma. For example a person who has had part of his/her small intestine removed (for medical reasons often being cancer), will have a difficulty in the absorption of certain nutrients like Vitamin A, calcium, Vitamin E, Vitamin B12, Vitamin E, Vitamin D, Selenium, Thiamin, Iron and so on. These people have to rely on supplementation to obtain their daily dose of the above mentioned vitamins and minerals.
Under nutrition shows up as protein or energy deficiency, vitamin or nutrient deficiencies. Malnutrition that occurs due to under nutrition is a common feature in developing countries where famines and starvation is a common occurrence.
Lack of mega nutrients and malnutrition
Malnutrition that occurs due to lack of mega nutrients is divided in to the following classes:
Lack of micro nutrients and malnutrition
Malnutrition that occurs due to lack of Micro nutrients is divided in to the following classes: