Minerals

Minerals, like vitamins, are essential for health. They help maintain normal heart rhythm, teeth and bones, muscle, and your body’s acid-base fluid balance.

Again, like vitamins, they are grouped into two categories; macro-minerals and trace minerals. Macro-minerals are required in daily doses of over 100 milligrams while trace minerals are needed in such tiny amounts that their requirements are often measured in micrograms.

A healthy diet containing a wide variety of food sources will supply enough minerals to maintain a healthy balance. Problems start to arise when a major food group, such as meat or dairy products, is eliminated.

As such, vegetarians are particularly at risk of mineral deficiency – if they do not plan their diet correctly. Minerals found in meat (such as iron, copper, and selenium) can also be supplied by other foods, but awareness is key if mineral levels are to be maintained at a healthy level.

The table below lists each essential mineral, along with a guide to their main food sources.

Mineral Function Food Source
Calcium Bones, teeth, blood clotting, muscle cocentration Milk products, vegetables, legumes
Chloride Digestion, extracellular fluids Salt in food
Chromium Energy metabolism Legumes, grains, meats, vegetable oils
Copper Iron metabolism Meats, water
Fluorine Bones, teeth Water, seafood, tea
Iodine Thyroid hormone Fish, milk products, vegetables, iodized salt
Magnesium Protein synthesis Grains, greens
Phosphorus Bones, teeth, acid-base balance Milk products, meats polutry, fish, grains
Potassium Nerve transmission, fluid and acid-base balance Greens, bananas, meats, milk products, potatoes,coffee
Selenium Antioxidant Seafood, meats, grains
Sodium Nerve function, fluid and acid-base balance Salt
Sulphur Liver function Dietry protein
Zinc Enzyme activity Meat, poultry, fish, milk products, grains, fruits,vegetables

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