Areca nut, which is the most commonly used drug in the world after tobacco, ethanol and caffeine, is the main ingredient of betel quid.

Objectives: To investigate the prevalence of betel nut chewing and oral submucous fibrosis (OSF) among adolescents in Loudi proper, Hunan province, and to provide scientific evidence for primary prevention for OSF.

Study on sterilization by microwaves on edible areca catechu;