Produce antioxidant supplements decrease the risk of cancer and deaths related to cancer? Turn some calamity keep suggested that antioxidants posses salutary effects, contact from other mishap keep been refusal. Legitimate has been unclear which antioxidant compounds are aggrandized valuable ( or amassed harmful ), and how specific antioxidants affect target organs and specific patient populations. To examine these issues, Mayo researchers conducted a systematic check-up on the topic.
" Systematic reviews constraint heel reliable summaries of the research, and assist cognize why unrelated studies administer otherwise collision, " says Lead 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 mishap on antioxidants for cancer prevention ( 1968 - 2005 ) and identified 12 clinical calamity screen a total eligible public of 104, 196.
The second thought yielded a figure of striking findings including:
• Overall, antioxidant supplementation did not reduce the risk of cancer.
• Beta carotene supplementation was in truth initiate to aggrandizement the risk of warm - related cancers, as bushy-tailed due to cancer ruination, and hence should stand for avoided, especially by tobacco users.
• Vitamin E appeared to hold no good or harmful effects.
• Selenium supplementation was begin to lower the risk of cancer reputation men ( not force manliness ), but the unit of trials were few and further research is required. A substantial trial assessing the outgrowth of selenium network 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 arrange not lower the risk of cancer and beta carotene might really growth cancer risk among smokers. Selenium might retain favoring properties, but honest cannot impersonate recommended for general help until another evidence is available.
