Health

Excessive intake of vitamin E can weaken bones, says study

06/03/2012

Japanese scientists have discovered a link between vitamin E intake and bone degenerative condition known as osteoporosis, in a study that may shed new light on the use of vitamin supplements.

Scientists found that giving increased doses of vitamin to rats at a level similar to that found in supplements made from animal bones stay thinner.

Vitamin E has antioxidant properties and is used to combat aging.

The mice developed osteoporosis after eight weeks of following this diet, with high levels of vitamin E, significantly higher than the dose found in a normal rodent diet, the study, published in the journal "Nature Medicine".

The team, led by Shu Takeda, Keio University, said that vitamin E stimulates the generation of bone degrading cells, which normally work in conjunction with bone-forming cells to maintain bone strength.

Osteoporosis is a disease that causes weakening of the bone tissue and the loss of bone density over time. Usually affects older people, particularly women, who are more prone to fractures.

Vitamin E is found naturally in many foods, including vegetable oil, walnuts and some leafy vegetables.

It is also found in supplements such as antioxidant and is believed to improve the health and delay problems associated with aging.

The study suggested the need for more research on how increased levels of vitamin E affect human health.

"It is possible that the volume (vitamin E) content in health supplements, bones can become weak," Takeda said the newspaper Mainichi Shimbun.

The findings were released after scientists found that mice genetically engineered to be deficient in vitamin E have high bone density.



Source: Environment Brazil

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