Excessive tea consumption may pose health risks. Tannins in tea can hinder iron absorption, especially for vegetarians. High caffeine levels may cause anxiety and sleep issues. Digestive problems and headaches are also potential side effects. Dependence, pregnancy concerns, and bone health are other considerations. Monitoring intake and choosing tea wisely are important for health. Consult doctors for health issues. For most people, a few cups of black or green tea feel harmless, even healthy. The drink is low in calories, rich in polyphenols and comforting on a busy day. Still, the same leaves that supply antioxidants also carry caffeine, tannins and trace minerals that can cause problems if your intake creeps well beyond three or four mugs…