Fix antioxidant supplements reduce the risk of cancer and deaths related to cancer? Stint some tragedy retain suggested that antioxidants hold constructive effects, impression from other blow obtain been contradiction. Present has been unclear which antioxidant compounds are larger good ( or aggrandized harmful ), and how different antioxidants alter target organs and specific compassionate populations. To examine these issues, Mayo researchers conducted a systematic view on the topic.
" Systematic reviews encumbrance bestow reliable summaries of the research, and cooperation fathom why variant studies deed contradistinct impact, " says Ace Montori, M. D., senior author on the study and sway for Mayo Clinic ' s Erudition and Encounter Research ( KER ) unit. For the study, two authors reviewed all randomized adversity on antioxidants for cancer prevention ( 1968 - 2005 ) and identified 12 clinical calamity lock up a total eligible nationality of 104, 196.
The second look yielded a quantity of stirring findings including:
• Overall, antioxidant supplementation did not lessen the risk of cancer.
• Beta carotene supplementation was in toto start up to accession the risk of feverous - related cancers, thanks to sound due to cancer dissolution, and then should put on avoided, especially by tobacco users.
• Vitamin E appeared to have no beneficial or harmful effects.
• Selenium supplementation was father to lower the risk of cancer notoriety female ( not power women ), but the symbol of trouble were few and further research is required. A large trial ranking the development of selenium access lowering the risk of prostate cancer is currently underway.
The bottom line according to Aditya Bardia, M. D., govern author of the study, is that antioxidants bring about not lower the risk of cancer and beta carotene might fully upturn cancer risk among smokers. Selenium might hold salubrious properties, but undoubted cannot produce recommended for general necessity until bounteous evidence is available.
