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  2. Trace element - Wikipedia

    en.wikipedia.org/wiki/Trace_element

    A trace element is a chemical element of a minute quantity, a trace amount, especially used in referring to a micronutrient, [1] [2] but is also used to refer to minor elements in the composition of a rock, or other chemical substance. In nutrition, trace elements are classified into two groups: essential trace elements, and non-essential trace ...

  3. Mineral (nutrient) - Wikipedia

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

    The four organogenic elements, namely carbon, hydrogen, oxygen, and nitrogen , that comprise roughly 96% of the human body by weight, [7] are usually not considered as minerals (nutrient). In fact, in nutrition, the term "mineral" refers more generally to all the other functional and structural elements found in living organisms. Plants obtain ...

  4. List of micronutrients - Wikipedia

    en.wikipedia.org/wiki/List_of_micronutrients

    1.1 Trace elements. 2 Vitamins. 3 See also. 4 References. ... Nutrition; References This page was last edited on 1 April 2024, at 04:59 (UTC). Text is ...

  5. Ultratrace element - Wikipedia

    en.wikipedia.org/wiki/Ultratrace_element

    In biochemistry, an ultratrace element is a chemical element that normally comprises less than one microgram per gram of a given organism (i.e. less than 0.0001% by weight), but which plays a significant role in its metabolism. Possible ultratrace elements in humans include boron, silicon, nickel, vanadium [1] and cobalt. [2]

  6. Micronutrient - Wikipedia

    en.wikipedia.org/wiki/Micronutrient

    Structure of the Mn 4 O 5 Ca core of the oxygen-evolving site in plants, illustrating one of many roles of the trace mineral, manganese. [ 22 ] Some seven trace elements are essential to plant growth, although often in trace quantities.

  7. Composition of the human body - Wikipedia

    en.wikipedia.org/wiki/Composition_of_the_human_body

    The remaining elements are trace elements, of which more than a dozen are thought on the basis of good evidence to be necessary for life. [1] All of the mass of the trace elements put together (less than 10 grams for a human body) do not add up to the body mass of magnesium, the least common of the 11 non-trace elements.

  8. Trace metal - Wikipedia

    en.wikipedia.org/wiki/Trace_metal

    Element percentages in the human body. Trace metals are the metals subset of trace elements; that is, metals normally present in small but measurable amounts in animal and plant cells and tissues. Some of these trace metals are a necessary part of nutrition and physiology. Some biometals are trace metals.

  9. Food fortification - Wikipedia

    en.wikipedia.org/wiki/Food_fortification

    Food fortification is the addition of micronutrients (essential trace elements and vitamins) to food products. Food enrichment specifically means adding back nutrients lost during food processing, while fortification includes adding nutrients not naturally present. [1]