Studies indicate garlic inhibits blood coagulation and may be effective in reducing LDL cholesterol and increasing HDL cholesterol. Experiments are being conducted to see if this substance reduces tumors. Free radicals damage body cells in a process similar to that in which oxygen causes paper to turn yellow. Free radicals are the underlying cause for a great number of bodily disorders. Free radicals form an essential component in the development of inflammations and allergic reactions.
Catechins have antimutagen properties.
Some antimicrobial action has also been reported. Neurotransmitter improvements have been noted in animal studies. Free radical formation can be reduced by restoring glutathione levels orally. It has been postulated that it improves microcirculatory blood flow. Thought to have an immune-stimulant effect upon the body.