Dietary mineral

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Dietary minerals are the chemical elements required by living organisms, other than the four elements carbon, hydrogen, nitrogen, and oxygen which are present in common organic molecules. The term "mineral" is archaic, since the intent of the definition is to describe ions, not chemical compounds or actual minerals. Furthermore, once dissolved, so-called minerals do not exist as such, sodium chloride breaks down into sodium ions and chloride ions in aqueous solution. Some dietitians recommend that these heavier elements should be supplied by ingesting specific foods (that are enriched in the element(s) of interest), compounds, and sometimes including even minerals, such as calcium carbonate. Sometimes these "minerals" come from natural sources such as ground oyster shells. Sometimes minerals are added to the diet separately from food, such as mineral supplements, the most famous being iodine in "iodized salt." Dirt eating, called pica or geophagy is practiced by some as a means of supplementing the diet with elements. The chemical composition of soils will vary depending on the location.

Vitamins, which are not considered minerals, are organic compounds, some of which contain heavy elements such as iodine and cobalt. The dietary focus on "minerals" derives from an interest in supporting the biosynthetic apparatus with the required elemental components.[1] Appropriate intake levels of certain chemical elements is thus required to maintain optimal health. Commonly, the requirements are met with a conventional diet. Excessive intake of any element (again, usually as an ion) will lead to poisoning. For example, large doses of selenium are lethal. On the other hand, large doses of zinc are less dangerous but can lead to a harmful copper deficiency (unless compensated for, as in the Age-Related Eye Disease Study).

Dietary minerals classified as "macromineral" are required in relatively large amounts. Conversely "microminerals" or "trace minerals" are required relatively in minute amounts. There is no universally accepted definition of the difference between "large" and "small" amounts.

Periodic table of the chemical elements (1-118)Dietary minerals.PNG


A variety of elements are required to support the biochemical processes, many play a role as electrolytes or in a structural role.[2] In Human nutrition, the dietary bulk "mineral elements" (RDA > 200 mg/day) are in alphabetical order (parenthetical comments on folk medicine perspective):

  • Calcium (for muscle and digestive system health, builds bone, neutralizes acidity, clears toxins, helps blood stream)
  • Chloride (for production of hydrochloric acid in the stomach)
  • Magnesium required for processing ATP and related reactions (health, builds bone, causes strong peristalsis, increases flexibility, increases alkalinity)
  • Phosphorus required component of bones (see apatite) and energy processing and many other functions (bone mineralization)[3]
  • Potassium required electrolyte (heart and nerves health)
  • Sodium electrolyte
  • Sulfur for three essential amino acids and many proteins and cofactors (skin, hair, nails, liver, and pancreas health)
  • Sodium Chloride (salt) Combination of both sodium and chloride (they both regulate movement of fluids and minerals in and out of body cells)

Trace minerals

A variety of elements are required in trace amounts, unusually because they play a role in catalysis in enzymes.[1] Some trace mineral elements (RDA < 200 mg/day) are (alphabetical order):

Iodine is required in larger quantities than the other trace minerals in this list and is sometimes classified with the bulk minerals. Sodium is not generally found in dietary supplements, despite being needed in large quantities, because the ion is very common in food. Many other elements have been suggested as required in human nutrition, in varying quantities. Standards of evidence vary for different elements, and not all have been definitively established as essential to human nutrition. Candidates include:

Elements for which convincing scientific evidence is lacking are marked as suspect:

  • Bismuth (component of the "Peptobismol")
  • Boron (Increases bone density)
  • Bromine
  • Chromium is speculated to be required in trace amounts for sugar metabolism in humans.
  • Indium (It has been speculated to enhance the absorption of all other minerals in a healthful matter. It may also help the healthy mineralization of organs.)[4]
  • Rubidium
  • Silicon (proposed to be relevant to bone and cartilage formation, but role of silicon in human health remains controversial).
  • Titanium
  • Tungsten (some organisms utlilize tungsten in place of molybdenum.)

Food sources

  • Dairy products, calcium|calcium-fortified food, canned fish with bones (salmon, sardines), and green leafy vegetables for calcium
  • Nuts, soy beans, and cocoa for magnesium
  • Table salt (sodium chloride, the main source), sea vegetables, olives, milk, and spinach for sodium
  • Legumes, potato skin, tomatoes, and bananas for potassium
  • Table salt is the main dietary source for chlorine
  • Meat, eggs, and legumes for sulfur
  • Red meat, leafy green vegetables, fish (tuna, salmon), eggs, dried fruits, beans, whole grains, and enriched grains for iron

A large body of research suggests that humans often can benefit from mineral supplementation. This is especially true for humans consuming a low variety of foods. Vitamins and minerals are interdependent, requiring the presence of one another for full benefit; taking a multivitamin without minerals is not nearly as effective as taking one with minerals. Extensive university research also demonstrates that the most bioavailable form of supplemental mineral is the chelated mineral (one that is bonded to a specific-size amino acid).

See also

External links


  1. 1.0 1.1 Lippard, Stephen J. (1994). Principles of Bioinorganic Chemistry. Mill Valley, CA: University Science Books. p. 411. ISBN 0935702725. 
  2. Nelson, David L. (2000-02-15). Lehninger Principles of Biochemistry, Third Edition (3 Har/Com ed.). W. H. Freeman. p. 1200. ISBN 1572599316. 
  3. Corbridge, D. E. C. (1995-02-01). Phosphorus: An Outline of Its Chemistry, Biochemistry, and Technology (5th ed.). Amsterdam: Elsevier Science Pub Co. p. 1220. ISBN 0444893075. 
  4. Schroeder HA, Nason AP (1976). "Interactions of trace metals in mouse and rat tissues; zinc, chromium, copper, and manganese with 13 other elements". J. Nutr. 106 (2): 198–203. PMID 1249646. 
  • Donatelle, Rebecca J. (2004-03-29). Health: The Basics (6th edition ed.). San Frnacisco: Benjamin Cummings. p. 480. ISBN 0805328521. 
Cost Effectiveness of Dietary mineral

| group5 = Clinical Trials Involving Dietary mineral | list5 = Ongoing Trials on Dietary mineral at Clinical Trials.govTrial results on Dietary mineralClinical Trials on Dietary mineral at Google

| group6 = Guidelines / Policies / Government Resources (FDA/CDC) Regarding Dietary mineral | list6 = US National Guidelines Clearinghouse on Dietary mineralNICE Guidance on Dietary mineralNHS PRODIGY GuidanceFDA on Dietary mineralCDC on Dietary mineral

| group7 = Textbook Information on Dietary mineral | list7 = Books and Textbook Information on Dietary mineral

| group8 = Pharmacology Resources on Dietary mineral | list8 = AND (Dose)}} Dosing of Dietary mineralAND (drug interactions)}} Drug interactions with Dietary mineralAND (side effects)}} Side effects of Dietary mineralAND (Allergy)}} Allergic reactions to Dietary mineralAND (overdose)}} Overdose information on Dietary mineralAND (carcinogenicity)}} Carcinogenicity information on Dietary mineralAND (pregnancy)}} Dietary mineral in pregnancyAND (pharmacokinetics)}} Pharmacokinetics of Dietary mineral

| group9 = Genetics, Pharmacogenomics, and Proteinomics of Dietary mineral | list9 = AND (pharmacogenomics)}} Genetics of Dietary mineralAND (pharmacogenomics)}} Pharmacogenomics of Dietary mineralAND (proteomics)}} Proteomics of Dietary mineral

| group10 = Newstories on Dietary mineral | list10 = Dietary mineral in the newsBe alerted to news on Dietary mineralNews trends on Dietary mineral</small>

| group11 = Commentary on Dietary mineral | list11 = Blogs on Dietary mineral

| group12 = Patient Resources on Dietary mineral | list12 = Patient resources on Dietary mineralDiscussion groups on Dietary mineralPatient Handouts on Dietary mineralDirections to Hospitals Treating Dietary mineralRisk calculators and risk factors for Dietary mineral

| group13 = Healthcare Provider Resources on Dietary mineral | list13 = Symptoms of Dietary mineralCauses & Risk Factors for Dietary mineralDiagnostic studies for Dietary mineralTreatment of Dietary mineral

| group14 = Continuing Medical Education (CME) Programs on Dietary mineral | list14 = CME Programs on Dietary mineral

| group15 = International Resources on Dietary mineral | list15 = Dietary mineral en EspanolDietary mineral en Francais

| group16 = Business Resources on Dietary mineral | list16 = Dietary mineral in the MarketplacePatents on Dietary mineral

| group17 = Informatics Resources on Dietary mineral | list17 = List of terms related to Dietary mineral

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