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  2. Mineral (nutrient) - Wikipedia

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

    In the context of nutrition, a mineral is a chemical element. Some "minerals" are essential for life, but most are not. [1] [2] [3] Minerals are one of the four groups of essential nutrients; the others are vitamins, essential fatty acids, and essential amino acids. [4] The five major minerals in the human body are calcium, phosphorus ...

  3. 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 ...

  4. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    A large fraction of the chemical elements that occur naturally on the Earth's surface are essential to the structure and metabolism of living things. Four of these elements (hydrogen, carbon, nitrogen, and oxygen) are essential to every living thing and collectively make up 99% of the mass of protoplasm. [1]

  5. Trace metal - Wikipedia

    en.wikipedia.org/wiki/Trace_metal

    Trace metals are sometimes referred to as trace elements, although the latter includes minerals and is a broader category. See also Dietary mineral. Trace elements are required by the body for specific functions. Things such as vitamins, sports drinks, fresh fruits and vegetables are sources.

  6. List of minerals - Wikipedia

    en.wikipedia.org/wiki/List_of_minerals

    Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species. Within a mineral species there may be variation in physical properties or minor amounts of impurities that are recognized by mineralogists or wider society as a mineral variety.

  7. Human nutrition - Wikipedia

    en.wikipedia.org/wiki/Human_nutrition

    Vitamins and minerals are essential to the proper functioning and maintenance of the human body. [113] There are 20 trace elements and minerals that are essential in small quantities to body function and overall human health. [113] Iron deficiency is the most common inadequate nutrient worldwide, affecting approximately 2 billion people. [114]

  8. Mineral - Wikipedia

    en.wikipedia.org/wiki/Mineral

    An example of a transparent mineral is muscovite (potassium mica); some varieties are sufficiently clear to have been used for windows. Translucent minerals allow some light to pass, but less than those that are transparent. Jadeite and nephrite (mineral forms of jade are examples of minerals with this property). Minerals that do not allow ...

  9. Nutrient - Wikipedia

    en.wikipedia.org/wiki/Nutrient

    Minerals are the exogenous chemical elements indispensable for life. Although the four elements: carbon , hydrogen , oxygen , and nitrogen ( CHON ) are essential for life, they are so plentiful in food and drink that these are not considered nutrients and there are no recommended intakes for these as minerals.

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