Vitamin Supplements Can Increase Risk Of Cancer - Go Health

Vitamin Supplements Can Increase Risk Of Cancer

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We often take over-the-counter supplements to compensate for vitamin and mineral deficiencies, but research now suggests that this may do more harm than good. A large-scale study conducted in the US has shown that over-supplementation may increase the risk of developing cancer and heart disease.

The findings were presented during the American Association for Cancer Research (AACR) Annual Meeting 2015.

“We are not sure why this is happening at the molecular level but evidence shows that people who take more dietary supplements than needed tend to have a higher risk of developing cancer,” said lead researcher Tim Byers from the University of Colorado Cancer Centre.

The research presented goes back 20 years, when studies suggested that a diet rich in fruits and vegetables helps keep cancer at bay.
Researchers then shifted their focus to vitamin and mineral supplements, to see if supplementing people with additional vitamins and minerals would also have anti-cancer benefits.

Researchers initially tested on animals and found encouraging results. But when they studied thousands of patients who were given dietary supplements over 10 years, the results were quite alarming.

“We found that the supplements were actually not beneficial for their health. In fact, some people actually got more cancer while on the vitamins,” Byers said.

The results of one trial showed that taking excess amounts of beta-carotene in supplement form increased the risk for both lung cancer and heart disease by 20 percent. Another trial showed that taking more than the recommended dose of folic acid increased the number of polyps in the colon, instead of reducing them.

“If taken at the correct dosage, multi-vitamins can be good for you. But there is no substitute for good, nutritional food,” he concluded.
Researchers concluded that by following a healthy diet plan, people can get the optimum amount of vitamins and minerals, without having to rely on supplementation.

Source: http://goo.gl/1udfhk