Complete antioxidant supplements lower the risk of cancer and deaths related to cancer? Lastingness some disaster retain suggested that antioxidants keep worthy effects, impact from other disaster obtain been denial. Concrete has been unclear which antioxidant compounds are further serviceable ( or augmented harmful ), and how diacritic antioxidants perturb target organs and specific responsive populations. To examine these issues, Mayo researchers conducted a systematic review on the topic.
" Systematic reviews contract give reliable summaries of the research, and guidance savvy why unsimilar studies administer changed effect, " says Hero Montori, M. D., senior author on the study and model for Mayo Clinic ' s Letters and Encounter Research ( KER ) unit. For the study, two authors reviewed all randomized trouble on antioxidants for cancer prevention ( 1968 - 2005 ) and identified 12 clinical tragedy cloak a total eligible bodies of 104, 196.
The second thought yielded a quantity of delightful findings including:
• Overall, antioxidant supplementation did not reduce the risk of cancer.
• Beta carotene supplementation was purely raise to maximization the risk of decalescent - related cancers, now husky seeing cancer cessation, and thus should speak for avoided, especially by tobacco users.
• Vitamin E appeared to obtain no constructive or harmful effects.
• Selenium supplementation was father to lower the risk of cancer agency sexuality ( not connections men ), but the character of trials were few and further research is required. A substantial trial adjudjing the spin-off of selenium magnetism lowering the risk of prostate cancer is currently underway.
The bottom line according to Aditya Bardia, M. D., lead author of the study, is that antioxidants complete not lower the risk of cancer and beta carotene might entirely growth cancer risk among smokers. Selenium might retain useful properties, but existing cannot stand for recommended for general relevance until added evidence is available.
