For more details on this topic, see deuterium. A deuterium atom contains one proton, one neutron, and one electron. 2H (atomic mass 2.013553212724(78) u), the other stable hydrogen isotope, is known as deuterium and contains one proton and one neutron in its nucleus.
The caffeine in green tea, especially when taken in large amounts, can worsen diarrhea. Irritable bowel syndrome (IBS) : Green tea contains caffeine. The caffeine in green tea, especially when taken in large amounts, can worsen diarrhea and might worsen symptoms of IBS.
4 possible green tea side effects. Green tea side effects are rare for the average adult drinking in moderation. I regularly drink green tea and I feel great. I live in Japan where most everyone has 2 or 3 cups a day. Negative effects of green tea isnât really a common topic. Itâs usually the other way around. But thatâs not to say that there arenât any possible side effects. If you have concerns, it would be best to speak to your doctor before starting to drink green tea. The following are some possible side effects of green tea.