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Malnutrition occurs when an organism gets too few or too many nutrients, resulting in health problems. [11] [12] Specifically, it is a deficiency, excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form.
The Maternal and Child Nutrition Study Group estimate that under nutrition, "including fetal growth restriction, stunting, wasting, deficiencies of vitamin A and zinc along with suboptimum breastfeeding—is a cause of 3.1 million child deaths and infant mortality, or 45% of all child deaths in 2011".
Failure to obtain the required amount of nutrients causes malnutrition. Nutritional science is the study of nutrition, though it typically emphasizes human nutrition. The type of organism determines what nutrients it needs and how it obtains them.
“Some may alter hunger hormones like ghrelin, which signals hunger; leptin, which signals fullness; or glucagon-like peptide-1 (GLP-1), which is involved in regulating appetite and slowing ...
Causes of vitamin B12 deficiency. There are a few reasons why someone might develop a vitamin B12 deficiency. Following a vegan diet for years is a big one, ... Lack of appetite.
Many Americans are vitamin-deficient and, on average, we get 10 to 15 grams of fiber per day, whereas our ancestors enjoyed about 100 grams. Switching up the order “tends to favor more nutrient ...
Alcoholism can also cause vitamin deficiencies. Long-term deficiencies can be life-threatening. [20] Riboflavin (Vitamin B 2) deficiency: Deficiency causes painful red tongue with sore throat, chapped and cracked lips, and inflammation at the corners of the mouth (angular cheilitis). Eyes can be itchy, watery, bloodshot and sensitive to light.
Micronutrient deficiency is defined as the sustained insufficient supply of vitamins and minerals needed for growth and development, as well as to maintain optimal health. Since some of these compounds are considered essentials (we need to obtain them from the diet), micronutrient deficiencies are often the result of an inadequate intake.