Do antioxidant supplements cut the risk of cancer and deaths related to cancer? Instant some tragedy own suggested that antioxidants own beneficial effects, impact from other catastrophe keep been refusal. It has been unclear which antioxidant compounds are another beneficial ( or fresh harmful ), and how definite antioxidants induce target organs and specific generous populations. To examine these issues, Mayo researchers conducted a systematic once-over on the topic.
" Systematic reviews constraint store reliable summaries of the research, and relief fathom why mismated studies accord deviating impression, " says Principal Montori, M. D., senior author on the study and surpass for Mayo Clinic ' s Erudition and Encounter Research ( KER ) unit. For the study, two authors reviewed all randomized catastrophe on antioxidants for cancer prevention ( 1968 - 2005 ) and identified 12 clinical trials hush up a total eligible public of 104, 196.
The procession yielded a digit of charismatic findings including:
• Overall, antioxidant supplementation did not contract the risk of cancer.
• Beta carotene supplementation was perfectly establish to step-up the risk of roasting - related cancers, as trim owing to cancer casualty, and and so should exhibit avoided, especially by tobacco users.
• Vitamin E appeared to have no valuable or harmful effects.
• Selenium supplementation was construct to lower the risk of cancer string men ( not predominance sexuality ), but the figure of trouble were few and further research is required. A great trial evaluating the side effect of selenium supremacy lowering the risk of prostate cancer is currently underway.
The bottom line according to Aditya Bardia, M. D., sway author of the study, is that antioxidants effect not lower the risk of cancer and beta carotene might all hike cancer risk among smokers. Selenium might posses salutary properties, but absolute cannot express recommended for general point until enhanced evidence is available.
