Caffeine in coffee can promote fat decomposition and release fat in the blood, so drinking coffee can also lose weight. Generally speaking, 1 day 4 cups of coffee without sugar and milk can achieve the ideal weight loss effect. But people with indigestion, hyperacidity and insomnia had better not use this method. If you are not used to the bitter taste of coffee, you can add a little milk, but never add sugar, because sugar will hinder the decomposition of fat. Hot coffee is more effective than iced coffee. Hot coffee can help you burn calories faster. Light roasted coffee is the most effective. Coffee with high baking temperature has a strong taste, but less caffeine is not conducive to weight loss, while American coffee with a lighter taste is more conducive to weight loss.