Radiation studies using green tea
Most of the research studies on green tea’s protective effects after damage from radiation have focused on ultraviolet rays from the sun and risk reduction of skin cancer.
However a few preliminary studies have explored possible uses of tea against radiation damage, including high energy sources like gamma rays.
Here is another study on green tea extract benefits for skin toxicity from side effects of radiation therapy.
All of these tea radiation studies are considered preliminary.
High energy radiation includes medical X-rays, medical cancer radiotherapy, and gamma rays such as those emitted from cesium 137, a long-lived particle that may be released during above-ground atomic testing and nuclear reactor accidents like Fukushima, among others.
Kelp, clay and other natural products may reduce radiation
Other natural products that may help reduce cellular damage from radiation include brown kelp. It is currently unknown whether current harvests of brown kelp will accumulate short-lived radioactive iodine particles. Generally, brown kelp has been an excellent source of iodine as it can store iodine at 10,000 times the water concentration.
Other natural products that may be protective include various ginsengs, and clays (in particular bentonite and clinoptilolite, also called zeolite)
A 1999 study found that clinoptilolite modified with hexacyanoferrate dramatically changed the impact of cesium 137 contaminated feed on chickens. Researchers used RADEKONT (a natural clinoptilolite modified by hexacyanoferrate) and showed that "RADEKONT as a supplement during the decontamination period decreased the biological half-life of 137Cs to less than 1 day." (Poschl M et al, Reduction of radiocaesium transfer to broiler chicken meat by a clinoptilolite modified with hexacyanoferrate, Radiat Environ Biophys, July 1999, p117-24) The half life of cesium 137 is generally reported as 30 years.
Another study showed that bentonite clay was twice as effective as clinoptilolite at reducing the transfer of radioactive cesium to milk in dairy cows (Unsworth EF et al, Investigations of the use of clay minerals and prussian blue in reducing the transfer of dietary radiocaesium to milk, Sci Total Environ, September 1989, p339-47). Some post-Chernobyl studies recommended animal radioprotective supplementation through salt licks or bolus administration to reduce the accumulation of radioactive fallout in milk and meat.
Reports on Fukushima power plant repairs as of April 15, 2011 mention adding zeolite clay to the areas in the ocean contaminated by radiation. Using clinoptilolite/zeolite and other clays is still considered a highly effective and inexpensive way to decontaminate some radioactive liquid wastes.
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This page last updated by Sharon Jones on November 14, 2012
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