Cause antioxidant supplements lower the risk of cancer and deaths related to cancer? Hour some tragedy own suggested that antioxidants posses favorable effects, results from other calamity retain been rejection. Factual has been unclear which antioxidant compounds are numerous healthful ( or likewise harmful ), and how uncommon antioxidants affect target organs and specific understanding populations. To examine these issues, Mayo researchers conducted a systematic second thought on the topic.
" Systematic reviews pledge maintain reliable summaries of the research, and helping hand penetrate why incomparable studies cede otherwise contact, " says Goddess Montori, M. D., senior author on the study and escort for Mayo Clinic ' s Education 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 blow shadow a total eligible humankind of 104, 196.
The second look yielded a figure of impressive findings including:
• Overall, antioxidant supplementation did not shorten the risk of cancer.
• Beta carotene supplementation was in fact start up to boost the risk of sultry - related cancers, since husky now cancer extermination, and since should act for avoided, especially by tobacco users.
• Vitamin E appeared to retain no salubrious or harmful effects.
• Selenium supplementation was constitute to lower the risk of cancer fix manhood ( not sway manhood ), but the quantity of calamity were few and further research is required. A large trial assessing the event of selenium fame lowering the risk of prostate cancer is currently underway.
The bottom line according to Aditya Bardia, M. D., surpass author of the study, is that antioxidants execute not lower the risk of cancer and beta carotene might in toto aggrandizement cancer risk among smokers. Selenium might own benign properties, but material cannot factor recommended for general advantage until fresh evidence is available.
