1, American coffee can eliminate fatigue and promote metabolism. American coffee contains certain nutrients, such as niacin and free fatty acids. After drinking coffee, you will feel full, which can reduce the intake of other foods, reduce weight and help digestion.

2, but don't drink American coffee on an empty stomach, otherwise it will stimulate excessive gastric acid secretion and cause gastrointestinal discomfort. Don't choose to drink American coffee at night, so as not to stimulate nerves and cause insomnia.