The body depends on vitamins and minerals to function; they are taken from diet and they represent major nutrients categories together with fatty acids, protein and sugars. Most nutritional supplements contain a balanced combination of vitamins and minerals, with the mention that some products are more specialized than others. Some products are unilateral containing only one mineral and the vitamin necessary for its absorption. Thus, calcium depends on vitamin D while magnesium works in combination with vitamin B6, to give just two relevant examples here.

All vitamins and minerals are specialized, and a balanced diet will normally provide enough for the proper body functioning. Mention must be made that people who suffer from chronic disease or those who have developed health problems due to mineral or vitamin deficiency which usually require supplementation. A good diet is no longer enough when disease is diagnosed, but it certainly supports the treatment, and this is the case with osteoporosis. Besides diet, you should use a calcium supplement and vitamins D and C to ensure a good absorption.

A balanced combination of vitamins and minerals works fine for visual health. Combinations of antioxidants like vitamin C, E and A together with selenium and zinc will prevent glaucoma, cataract and macular degeneration. People who suffer from the dry eye syndrome could also improve their condition by using such supplements. Talk to a doctor before using any vitamin supplements. Vitamin and mineral deficiencies require special tests for diagnosis.

Anemia is often treated with a strong combination of vitamins and minerals besides a very healthy diet. Yet, you cannot self-diagnose for anemia. Here are a few situations where you could go wrong with the use of vitamins and minerals without a doctor's advice.

There are health conditions that do not allow the administration of certain vitamins and supplements.

-Pregnant women should be careful not to use too much vitamin A because it can cause anatomical defects in the baby.

-Smokers who take vision supplements may have problems with the same vitamin A (beta-carotene)also have problems with the administration of beta-carotene (vitamin A).

-People who suffer from kidney stones may have problems when using calcium supplements.

-Vitamin K interferes with blood thinning medication.

-Iron causes constipation.

Other problems may accompany the administration of vitamins and minerals. Use supplements only according to doctor's orders because you risk to cause health problems.

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