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Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. [1] Poor nutrition is a chronic problem often linked to poverty, food security , or a poor understanding of nutritional requirements. [ 2 ]
Vitamin B complex. Vitamin B 1 (thiamin) Vitamin B 2 (riboflavin) Vitamin B 3 (niacin) Vitamin B 5 (pantothenic acid) Vitamin B 6 group: Pyridoxine; Pyridoxal-5-Phosphate; Pyridoxamine; Vitamin B 7 (biotin) Vitamin B 9 (folate) Vitamin B 12 (cobalamin) Choline; Vitamin A (e.g. retinol (see also - provitamin A carotenoids)) Vitamin C (Ascorbic ...
Well-researched human vitamin deficiencies involve thiamine (beriberi), niacin , [32] vitamin C (scurvy), folate (neural tube defects) and vitamin D (rickets). [8] In much of the developed world these deficiencies are rare due to an adequate supply of food and the addition of vitamins to common foods. [ 20 ]
Vitamin A is found in many foods. [56] Vitamin A in food exists either as preformed retinol – an active form of vitamin A – found in animal liver, dairy and egg products, and some fortified foods, or as provitamin A carotenoids, which are plant pigments digested into vitamin A after consuming carotenoid-rich plant foods, typically in red ...
Global average human diet and protein composition and usage of crop-based products [11] (more statistics) Humans eat thousands of plant species; there may be as many as 75,000 edible species of angiosperms, of which perhaps 7,000 are often eaten. [12] Most human plant-based food calories come from maize, rice, and wheat. [13]
In the United States, foods poor in micronutrient content and high in food energy make up some 27% of daily calorie intake. [3] One US national survey (National Health and Nutrition Examination Survey 2003-2006) found that persons with high sugar intake consumed fewer micronutrients, especially vitamins A, C, and E, and magnesium.
Vitamin D is present in a limited number of foods—fatty fish and cod liver oil are some of the best food sources. ... and vitamin D supplements and diet ... found fiber intake to be associated ...
For precise details about vitamins and mineral contents, the USDA source can be used. [1] To use the tables, click on "show" or "hide" at the far right for each food category. In the Measure column, "t" = teaspoon and "T" = tablespoon. In the food nutrient columns, the letter "t" indicates that only a trace amount is available.