What are the effects of drinking too much green tea?

Green tea is a popular beverage known for its numerous health benefits. It comes from the leaves of Camellia sinensis, the same plants from which black tea is sourced, but green tea undergoes minimal processing, allowing it to retain more nutrients. Green tea acts as a powerful antioxidant, which can help combat harmful free radicals in the body. Research suggests that drinking green tea may have positive effects on cardiovascular health, metabolism, and weight loss. Can you overdose on green tea? What could be the consequences? How much green tea can you drink in a day?