1, which can play an insect repellent role: Areca catechu has an insect repellent effect.

2, conducive to improving the digestive system: chewing betel nut can increase the tension of gastrointestinal smooth muscle.

3, can detoxify: people who are often constipated can improve by eating betel nut.

Disadvantages:

1, betel nut contains carcinogenic alkaloids, which can lead to oral cancer if eaten too much.

2, betel nut contains more melanin, long-term chewing betel nut will make people's teeth black.

3. Betel nut juice is easy to form dental calculus, which consumes dentin and is harmful to teeth.

Extended data:

medicinal

According to the drug supervision department, there are 225 drugs containing betel nut in China. According to general medicine, betel nut has the efficacy of "killing insects, breaking accumulation, lowering qi and promoting stagnation, promoting hydration and eliminating dampness", and has been used to treat parasitic infections such as tapeworms, hookworms, roundworms and ginger worms.

Simo Tang, which is composed of areca nut, linderae root, ginseng and agarwood, is mainly used to treat "seven emotions are against qi, and the upper breath is urgent, which prevents people from eating stuffy food". There is a folk tradition of taking Simo Tang one week after the baby is born. It is said that it is beneficial to the child's stomach and will not make trouble in the future.

References:

Baidu Encyclopedia-Betel nut