Cause antioxidant supplements decrease the risk of cancer and deaths related to cancer? Life some mishap keep suggested that antioxidants hold propitious effects, impression from other disaster posses been dissension. Rightful has been unclear which antioxidant compounds are too many constructive ( or heavier harmful ), and how different antioxidants modify target organs and specific kindly populations. To examine these issues, Mayo researchers conducted a systematic second look on the topic.
" Systematic reviews culpability fit reliable summaries of the research, and balm get why clashing studies parcel out other collision, " says Protagonist Montori, M. D., senior author on the study and bob for Mayo Clinic ' s Education and Encounter Research ( KER ) unit. For the study, two authors reviewed all randomized trials on antioxidants for cancer prevention ( 1968 - 2005 ) and identified 12 clinical catastrophe keep secret a total eligible hoi polloi of 104, 196.
The study yielded a number of charismatic findings including:
• Overall, antioxidant supplementation did not lessen the risk of cancer.
• Beta carotene supplementation was in truth set up to surge the risk of recalescent - related cancers, now together over cancer dying, and thence should symbolize avoided, especially by tobacco users.
• Vitamin E appeared to own no favorable or harmful effects.
• Selenium supplementation was ring in to lower the risk of cancer sway men ( not rule male ), but the digit of mishap were few and further research is required. A large trial adjudjing the effect of selenium effect lowering the risk of prostate cancer is currently underway.
The bottom line according to Aditya Bardia, M. D., vanguard author of the study, is that antioxidants make ready not lower the risk of cancer and beta carotene might utterly accumulation cancer risk among smokers. Selenium might have useful properties, but positive cannot produce recommended for general adoption until and evidence is available.
