Green tea seems to help protect the body from autoimmune disorders, according to a Medical College of Georgia oral biologist. Dr. Stephen Hsu, a researcher in the MCG School of Dentistry, has amassed a large bank of research helping document green tea’s health benefits in everything from oral cancer to wrinkles. The benefits spring from compounds in green tea called polyphenols, which help eliminate DNA-damaging free radicals. As an added benefit, a green tea-induced protein called p57 protects healthy cells as polyphenols target cancer cells for destruction.