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  2. List of micronutrients - Wikipedia

    en.wikipedia.org/wiki/List_of_micronutrients

    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).

  3. Nutrient - Wikipedia

    en.wikipedia.org/wiki/Nutrient

    Ignoring the non-alcohol contribution of those beverages, the average ethanol contributions to daily food energy intake are 200 and 450 kJ (48 and 108 kcal), respectively. Alcoholic beverages are considered empty calorie foods because, while providing energy, they contribute no essential nutrients. [34]

  4. Nutrition - Wikipedia

    en.wikipedia.org/wiki/Nutrition

    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.

  5. Mineral (nutrient) - Wikipedia

    en.wikipedia.org/wiki/Mineral_(nutrient)

    For example, whether chromium is essential in humans is debated. No Cr-containing biochemical has been purified. The United States and Japan designate chromium as an essential nutrient, [11] [12] but the European Food Safety Authority (EFSA), representing the European Union, reviewed the question in 2014 and does not agree. [13]

  6. Trace element - Wikipedia

    en.wikipedia.org/wiki/Trace_element

    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 ]

  7. Plant nutrients in soil - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrients_in_soil

    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 ...

  8. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    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 ...

  9. Empty calories - Wikipedia

    en.wikipedia.org/wiki/Empty_calories

    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.