Eating betel nut often is not good for people because betel nut itself contains betel nut alkaloids, and people who eat betel nut often will get a specific disease, which we call oral submucosal fibrosis. This type of disease is a kind of precancerous lesion, and relatively speaking, the cancer rate is very high, much higher than the common oral leukoplakia cancer rate. The WHO has classified betel nut as a class I carcinogen, along with the very familiar nicotine. So eating betel nut has been considered a very unhealthy habit, especially long-term chewing betel nut, there is a very great danger to patients, is likely to lead to oral cancer, so in order to avoid this type of risk, it is recommended that you try not to eat betel nut food.