Green tea has been consumed for centuries and is renowned for its potential health benefits. These benefits are primarily attributed to the bioactive compounds found in green tea leaves, particularly catechins and polyphenols. It is rich in antioxidants, especially catechins like epigallocatechin gallate (EGCG). Antioxidants help neutralize harmful free radicals in the body, protecting cells and tissues from oxidative damage. Green tea may promote heart health by improving cardiovascular function. It can lower LDL (bad) cholesterol levels, reduce blood pressure, and improve blood vessel function. Regular consumption of green tea has been associated with a reduced risk of heart disease. Green tea can aid in weight management by increasing metabolism and fat oxidation. The caffeine in green tea may boost energy expenditure, and the catechins may help burn fat, making it a useful addition to a weight loss plan. Green tea's antioxidants, particularly EGCG, can boost the immune system and enhance the body's defense mechanisms, reducing the risk of infections and illnesses. Studies suggest that green tea may help regulate blood sugar levels and improve insulin sensitivity.