<unk>  The<unk>  ( or ) is the seed of the<unk>  palm<unk>  catechu), which grows in much of the tropical Pacific (Melanesia and Micronesia), Southeast and South Asia, and parts of east Africa. It is commonly referred to as betel<unk> , not to be confused with betel (Piper betle) leaves that are often used to wrap it (a preparation known as paan). Consumption has many harmful effects on health and is carcinogenic to humans. Various compounds present in the<unk> , including<unk> line (the primary psychoactive ingredient which is similar to nicotine), contribute to histologic changes in the oral mucosa. It is known to be a major risk factor for cancers (squamous cell carcinoma) of the mouth and esophagus. As with chewing tobacco, its use is discouraged by preventive efforts. Consumption by hundreds of millions of people worldwide – mainly with southern and eastern Asian origins – has been described as a "neglected global public health emergency".
Areca nut
Monkeypox
Smokeless tobacco
Coal tar
Herbal smokeless tobacco
Dissolvable tobacco
Khat
Ultra-processed food