yes it is injurious to health . Gutkha contains betel nuts,tobacco,lime,catechu and permitted spices and flavours. The first four sustances damage the sensitive mucosa, causing constant irritation and mi- crotrauma to the mucosa. Chemicals present act as a toxin. The phenol in the betel nut, with its caustic burning effect,destroys the mucosa ,causing oral ulcers. The betel nut also contains tannins, which act as astringents, precipitating protein and damaging the mucosa. ...
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