More seriously, high doses of beta-carotene may increase the risk of lung cancer and cardiovascular disease in individuals already at high risk for these diseases, such as current and former smokers and people who have been exposed to asbestos.
- Note the original study/loud news story data about beta carotine was reevaluated independently by Yale researchers who found no correlation when the data was analyzed in its entirety. (The original researchers cherry picked data to try to smear beta carotene)
There's also evidence from studies of animals and human tissue suggesting that antioxidants can encourage the growth and spread of some cancers.
Basically a lie. The opposite is true. This propaganda is based on the finding that low doses of vitamin C may encourage cancer growths. It ignores the mountain of evidence that the appropriate high-dose vitamin C (and other antioxidants) are one of the best cancer fighters.
In addition, high-dose vitamin E supplements have been shown to interact with certain medicines, such as aspirin, warfarin, tamoxifen and cyclosporine A. They've also been tied to an increased risk of early death in people with chronic disease.
Where are the references? What type of interaction? The vitamin E "interaction" is largely imagined, more of a rumor, and this bogus concern is repeated by ignorant doctors and hospitals across the USA.
These studies suggest that, yes, having excessive amounts of antioxidants can be bad for you , but why? One reason is that low amounts of free radicals can actually be helpful.
No, not a single study suggests this, and free radicals "can" actually be helpful? There are always questions in real science, but garbage in, garbage out. Most of the "science" she refers to is marketing material produced by pharmaceutical companies.
"There is lots of evidence indicating that free radicals have beneficial roles in physiological processes," Ismail Laher, a professor of pharmacology at the University of British Columbia, told Live Science in an email. At low concentrations, free radicals help cells grow and are part of the body's defense mechanism against disease. They are also involved in the metabolism, or breakdown, of drugs and participate in cell-to-cell communication.
Even if true, not all free radicals are quenched by anti-oxidants. Oh if it were only true, if it really was the case that we could stay young and beautiful forever just by taking vitamin C...