Areca catechu contains a small amount of arecoline, norarecoline, isodemethylarecoline, arecoline and homoarecoline, all of which exist together with tannic acid, and you will feel drunk after eating them.

Extended data:

Areca catechu is an evergreen tree with erect stems, tree shape, height of 10 meters, up to 30 meters, obvious annular leaf scars, monoecious, multi-branched inflorescences, oblong ovary, oblong or ovoid fruit, ovoid seeds, and flowering in March-April.

Areca catechu is native to Malaysia, and China is mainly distributed in tropical areas such as Yunnan, Hainan and Taiwan Province. Widely cultivated in tropical Asia.

Areca catechu is an important Chinese herbal medicine. Some ethnic minorities in the south still use it as a chewing hobby, but it is a carcinogen in the list of carcinogens of the International Agency for Research on Cancer 1 of the World Health Organization.

References:

Baidu encyclopedia-betel nut

References:

China Net-Children's eat areca addiction is harmful to health.