He hopes to find out if the green tea pills will prevent head and neck cancer. What To Do A few cups a day of green tea shouldn't hurt you, but watch out if you're sensitive to caffeine. Some people in Newman's preliminary study reported nervousness and insomnia, signs they were getting too much caffeine. Also, green tea does not always sit well on American taste buds. Some says it tastes like boiled grass.
Experts recommend trying a flavored brand or using plenty of milk and sugar.
You could also try iced green tea, which is available on some grocery store shelves. To see what clinical trials are available for gastrointestinal problems, check Veritas Medicine or the National Institutes of Health . Also, this fact sheet written by British tea manufacturers explains the differences between green and black tea. And read previous HealthScoutNews articles on the health effects of tea . This Web site is a free resource.