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Effects of Beta-Carotene Supplements on Cancer Prevention: Meta-Analysis of Randomized Controlled Trials.

Non-smokers and smokers who take beta-carotene supplements are more prone to develop bladder cancer and all types of cancer respectively.

This study assessed the role beta-carotene supplements play in the prevention of cancer. Researchers systematically reviewed data obtained from 848 published articles and 6 randomized controlled trials.

The team of investigators discovered that beta-carotene supplement use was associated with high bladder cancer risk. In addition, regular intake of beta-carotene supplements was found marginally increased the odds of developing cancer among current smokers, but it had no effect on cancer prevention among non-smokers in this study. The results of this meta-analysis do not support the popular belief that frequent intake of antioxidant supplements, such as beta carotene supplements, may protect individuals against the development of various forms of cancer.

Research Summary Information

  • 2011
  • Jeon YJ, Myung SK, Lee EH, Kim Y, Chang YJ, Ju W, Cho HJ, Seo HG, Huh BY.
  • Department of Family Medicine, Inje University Haeundae Paik Hospital, Busan, Republic of Korea.
  • No, Free full text of study was not found.
  • No. Source of funding disclosure not found
  • No. Potential conflicts disclosure not found
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