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Micronutrients are nutrients such as vitamins and minerals required by organisms in varying quantities throughout life to orchestrate a range of physiological functions to maintain health. [1] [2] The following is a list of micronutrients used by various living organisms. For human-specific nutrients, see Mineral (nutrient).
A balanced diet includes appropriate amounts of all essential and non-essential nutrients. These can vary by age, weight, sex, physical activity levels, and more. A lack of just one essential nutrient can cause bodily harm, just as an overabundance can cause toxicity.
A nutrient is a substance used by an organism to survive, grow and reproduce. The requirement for dietary nutrient intake applies to animals, plants, fungi and protists. Nutrients can be incorporated into cells for metabolic purposes or excreted by cells to create non-cellular structures such as hair, scales, feathers, or exoskeletons.
An essential trace element is a dietary element, a mineral that is only needed in minute quantities for the proper growth, development, and physiology of the organism. [4] The essential trace elements are those that are required to perform vital metabolic activities in organisms. [ 5 ]
Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...
Some phytochemicals are known phytotoxins that are toxic to humans; [19] [20] for example aristolochic acid is carcinogenic at low doses. [21] Some phytochemicals are antinutrients that interfere with the absorption of nutrients. [22] Others, such as some polyphenols and flavonoids, may be pro-oxidants in high ingested amounts. [23]
Essential to many plants (e.g. legumes and some grain crops). [71] Also used in the enzyme urease. Sodium: Non-essential micronutrient: Na + 0: 31 [82] Na 2 SiO 3, Na 2 SO 4, NaCl, NaHCO 3, and NaOH: Na + can partially replace K + in some plant functions but K + is still an essential nutrient. [70] Vanadium: Non-essential micronutrient: VO 2+ 0 ...
Granulated sugar provides energy in the form of calories, but has no other nutritional value. In human nutrition, empty calories are those calories found in foods and beverages (including alcohol) [1] composed primarily or solely of calorie-rich macronutrients such as sugars and fats, but little or no micronutrients, fibre, or protein.