Transact antioxidant supplements decrease the risk of cancer and deaths related to cancer? While some calamity own suggested that antioxidants obtain favoring effects, collision from other tragedy obtain been denial. Evident has been unclear which antioxidant compounds are larger helpful ( or massed harmful ), and how particular antioxidants stir target organs and specific generous populations. To examine these issues, Mayo researchers conducted a systematic once-over on the topic.
" Systematic reviews responsibility implement reliable summaries of the research, and guidance grasp why other studies bequeath contradistinctive impact, " says Conqueror Montori, M. D., senior author on the study and cause for Mayo Clinic ' s Enlightenment and Encounter Research ( KER ) unit. For the study, two authors reviewed all randomized disaster on antioxidants for cancer prevention ( 1968 - 2005 ) and identified 12 clinical blow squirrel a total eligible tribe of 104, 196.
The second look yielded a figure of stirring findings including:
• Overall, antioxidant supplementation did not cut the risk of cancer.
• Beta carotene supplementation was fully constitute to boost the risk of scalding - related cancers, being hale due to cancer necrosis, and therefrom should correspond to avoided, especially by tobacco users.
• Vitamin E appeared to hold no valuable or harmful effects.
• Selenium supplementation was launch to lower the risk of cancer prerogative female ( not direction men ), but the figure of adversity were few and further research is required. A great trial classifying the sequel of selenium mark lowering the risk of prostate cancer is currently underway.
The bottom line according to Aditya Bardia, M. D., model author of the study, is that antioxidants halt not lower the risk of cancer and beta carotene might thoroughly increase cancer risk among smokers. Selenium might hold healthful properties, but legitimate cannot be recommended for general way until enhanced evidence is available.
