green tea harmful effects
Generally speaking, green tea is a very healthy beverage with numerous benefits. However, some people may experience negative side effects from drinking green tea. These may include nausea, an increased risk of osteoporosis and more.
For those with caffeine sensitivity or high consumption levels of green tea, there may be some caffeine side effects. 1  In general, green tea has less caffeine than other tea types. However, some types of green tea (such as matcha green tea) can have more caffeine than your typical black tea or even an espresso. However, excessive consumption of green tea can cause restlessness, heart palpitations, difficulty sleeping, anxiety, irritability, increased heart rate and elevated blood pressure.