Essential Chemical Elements For Mammals
Some sources state that sixteen chemical elements are required to support human biochemical processes by serving structural and functional roles as well as electrolytes: However, as many as 26 elements in total (including the common hydrogen, carbon, nitrogen and oxygen) are suggested to be used by mammals, as a result of studies of biochemical, special uptake, and metabolic handling studies. However, many of these additional elements have no well-defined biochemical function known at present. Most of the known and suggested dietary elements are of relatively low atomic weight, and are reasonably common on land, or at least, common in the ocean (iodine, sodium):
Periodic table highlighting dietary elements
H | He | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Li | Be | B | C | N | O | F | Ne | ||||||||||||
Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||||
K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr | ||
Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe | ||
Cs | Ba | * | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | |
Fr | Ra | ** | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Uut | Fl | Uup | Lv | Uus | Uuo | |
* | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | |||||
** | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No |
The four organic basic elements | Quantity elements | Essential trace elements | Suggested function from biochemistry and handling but no identified biological function in humans |
The following play important roles in biological processes:
Dietary element | RDA/AI (mg) | Description | Category | High nutrient density dietary sources |
Insufficiency | Excess |
---|---|---|---|---|---|---|
Potassium | 04700.0004700 mg | Quantity | is a systemic electrolyte and is essential in coregulating ATP with sodium. | Legumes, potato skin, tomatoes, bananas, papayas, lentils, dry beans, whole grains, yams, soybeans, spinach, chard, sweet potato, turmeric. | hypokalemia | hyperkalemia |
Chlorine | 02300.0002300 mg | Quantity | is needed for production of hydrochloric acid in the stomach and in cellular pump functions. | Table salt (sodium chloride) is the main dietary source. | hypochloremia | hyperchloremia |
Sodium | 01500.0001500 mg | Quantity | is a systemic electrolyte and is essential in coregulating ATP with potassium. | Table salt (sodium chloride, the main source), sea vegetables, milk, and spinach. | hyponatremia | hypernatremia |
Calcium | 01300.0001300 mg | Quantity | is needed for muscle, heart and digestive system health, builds bone, supports synthesis and function of blood cells. | Dairy products, eggs, canned fish with bones (salmon, sardines), green leafy vegetables, nuts, seeds, tofu, thyme, oregano, dill, cinnamon. | hypocalcaemia | hypercalcaemia |
Phosphorus | 00700.000700 mg | Quantity | is a component of bones (see apatite), cells, in energy processing and many other functions. | Red meat, dairy foods, fish, poultry, bread, rice, oats. In biological contexts, usually seen as phosphate. | hypophosphatemia | hyperphosphatemia |
Magnesium | 00420.000420 mg | Quantity | is required for processing ATP and for bones. | Raw nuts, soy beans, cocoa mass, spinach, chard, sea vegetables, tomatoes, halibut, beans, ginger, cumin, cloves. | hypomagnesemia, magnesium deficiency |
hypermagnesemia |
Zinc | 00011.00011 mg | Trace | is pervasive and required for several enzymes such as carboxypeptidase, liver alcohol dehydrogenase, and carbonic anhydrase. | Calf liver, eggs, dry beans, mushrooms, spinach, asparagus, scallops, red meat, green peas, yoghurt, oats, seeds, miso | zinc deficiency | zinc toxicity |
Iron | 00018.00018 mg | Trace | is required for many proteins and enzymes, notably hemoglobin to prevent anemia. Dietary sources include red meat, leafy green vegetables, fish (tuna, salmon), eggs, dried fruits, beans, whole grains, and enriched grains. | Grains, dry beans, eggs, spinach, chard, turmeric, cumin, parsley, lentils, tofu, asparagus, salad greens, soybeans, shrimp, beans, tomatoes, olives | anaemia | iron overload disorder |
Manganese | 00002.3002.3 mg | Trace | is a cofactor in enzyme functions. | Spelt grain, brown rice, beans, spinach, pineapple, tempeh, rye, soybeans, thyme, raspberries, strawberries, garlic, squash, eggplant, cloves, cinnamon, turmeric | manganese deficiency | manganism |
Copper | 00000.9000.900 mg | Trace | is required component of many redox enzymes, including cytochrome c oxidase. | Mushrooms, spinach, greens, seeds, raw cashews, raw walnuts, tempeh, barley | copper deficiency | copper toxicity |
Iodine | 00000.1500.150 mg | Trace | is required not only for the synthesis of thyroid hormones, thyroxine and triiodothyronine and to prevent goiter, but also, probably as an antioxidant, for extrathyroidal organs as mammary and salivary glands and for gastric mucosa and immune system (thymus):
|
Sea vegetables, iodized salt, eggs. Alternate but inconsistent sources of iodine: strawberries, mozzarella cheese, yogurt, milk, fish, shellfish. | iodine deficiency | iodism |
Selenium | 00000.0550.055 mg | Trace | a cofactor essential to activity of antioxidant enzymes like glutathione peroxidase. | Brazil nuts, cold water wild fish (cod, halibut, salmon), tuna, lamb, turkey, calf liver, mustard, mushrooms, barley, cheese, garlic, tofu, seeds | selenium deficiency | selenosis |
Molybdenum | 00000.0450.045 mg | Trace | the oxidases xanthine oxidase, aldehyde oxidase, and sulfite oxidase | Tomatoes, onions, carrots | molybdenum deficiency |
Read more about this topic: Dietary Mineral
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