The habit of chewing betel quid is widespread in South-East Asia and the South Pacific islands and in people of Indian origin elsewhere in the world. Betel quid usually contains areca nut, lime and catechu wrapped in a betel leaf. Tobacco is often added.
These habits result in exposure inter alia to areca-nut alkaloids, N-nitroso compounds derived from these alkaloids, polyphenols, and, when the habit includes tobacco, tobacco-specific nitrosamines
The habit of chewing betel quid is widespread in South-East Asia and the South Pacific islands and in people of Indian origin elsewhere in the world. Betel quid usually contains areca nut, lime and catechu wrapped in a betel leaf. Tobacco is often added.These habits result in exposure inter alia to areca-nut alkaloids, N-nitroso compounds derived from these alkaloids, polyphenols, and, when the habit includes tobacco, tobacco-specific nitrosamines
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