Vanadium and vanadyl sulfate.
Vanadyl sulfate is a supplemental sulphur chemical form of the  trace mineral vanadium. Studies have given promising evidence that vanadium has insulin mimic properties and can control the blood glucose level. Thus, the interest in using vanadium as an alternative treatment for diabetes, especially for the type 2 of the disease, has been in increase since the early '80s. Quite often, healthcare providers prescribe vanadium preparations for alternative diabetes treatment. Vanadium salts may allow people with diabetes to take less insulin or no medication at all. Vanadyl sulfate, when combined with anti-diabetes medication may lead to hypoglycemic episodes.
Vanadyl sulfate can increase the basal metabolic rate and consequently to contribute to weight loss by accelerating calories burning. The nutrient can help in improvement of muscle's energy efficiency, growth and performance by enforcing greater amounts of amino acids and glucose to enter the muscle. Other important properties include the contribution to protein synthesis, metabolism of lipids, control of blood cholesterol level, prevention of cancer, improvement of fertility, enhancement of thyroid gland function and the participation in glycogen production.
Because of the above properties vanadyl sulfate is used in diabetes herbal remedies complexes, in weight loss preparations and in supplementation products for exercise endurance. For instance, bodybuilders by using the nutrient on a regular basis and before any training session may achieve the increase of both muscle size and strength. Studies have shown that the effects of vanadyl sulfate may take three to four weeks to ware off after the discontinuation of the supplementation.
Vanadyl sulfate, although is well accepted, it is absorbed with difficulty in the gastrointestinal track. It has been estimated that less than 5% is absorbed, since most of the digested dietary vanadium is excreted in the feces.
Sources of vanadium.
The best sources of vanadium are mushrooms, shellfish, eggs, black pepper, parsley, dill seed, strawberries, radishes, vegetable oils, olives, root vegetables, lettuces, soybeans, nuts, grain and whole grain products. A balanced diet may provide a daily intake of 10-30 micrograms of the mineral. For people with increased needs of vanadium, multi-mineral-vitamin compounds are available in the market. You can try the  button in order to find such food supplements online.
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Vanadium deficiency and toxicity.
Vanadium deficiency in humans may lead to high bad cholesterol and triglyceride levels and elevate the risk for coronary heart disease and cancer.
Vanadium can easily be toxic, despite the fact that it is not readily absorbable. Toxicity due to high intake of vanadium may lead to the damage of liver, nerves and blood vessels. It can also cause renal failure, abdominal pain, nausea, vomiting, bloating, delay of growth and anorexia.
Recommendations for vanadium.
There is no recommended dietary allowance (RDA) for vanadium. A daily intake of 100mcg, divided in two or three equal doses, seems to be adequate and safe. Therapeutic doses may be higher, depending on a doctor's recommendations.
It has been already mentioned that, in combination with insulin or anti-diabetes pills, vanadyl sulfate may cause serious hypoglycemic situations. Thus, for people with diabetes, it is strongly recommended a physician's advise to be sought, before any use of vanadium supplements.
Safety in children, adolescents, pregnant or breastfeeding women has not been established yet.
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