Green tea is rich in flavonoids.
Flavonoids have some theoretical usefulness in the treatment of multiple sclerosis.
In Japan, where green tea is a common drink, MS has only one-fifteenth the frequency as with people in California. Japanese living in Hawaii have three times the frequency of MS as those living in Japan. Also, Japanese consume an approximate average of 8 grams of ginger per day. Like the flavonoids, ginger has strong anti-oxidant properties. I speculate that flavonoids may have value in the treatment of multiple sclerosis.