Green tea may help to reduce thigh fat, but it is not a magical solution. While green tea does contain compounds that may boost metabolism and increase fat oxidation, it is important to combine it with a healthy diet and regular physical activity for the best results.  Drinking green tea alone is unlikely to cause significant weight loss, especially in a specific area like the thighs. To lose fat, it is important to create a calorie deficit by reducing your intake of calories and increasing your physical activity. This will help your body to use stored fat for energy, leading to weight loss all over your body.