Eating betel nut will not get fat, betel nut has almost no calories and energy, and there is no between relationship with the human body to get fat. Betel nut mainly contains phenols, polysaccharides, crude fiber, water, ash, alkaloids and other ingredients, and does not make people fat substances, therefore, eating betel nut will not get fat. Obesity is usually caused by excessive intake of high-calorie, high-fat food and no exercise, resulting in excess calories into fat accumulation in the body, thus appearing fat. Although eating betel nut will not make the body fat, but long-term eating betel nut is harmful to human health. As betel nut contains a large amount of betel nut alkali, the consumption of betel nut will have a certain impact on the human body’s autonomic and central nervous system, resulting in headaches, dizziness and other conditions. Betel nut is hard, long-term consumption of betel nut will damage the teeth, pigmentation, dental caries and so on. In addition, long-term chewing betel nut will also stimulate oral mucosal lesions, increase the incidence of pharyngeal cancer, esophageal cancer, oral cancer, it is not recommended to eat.