Hi! Welcome to HCM! Tobacco use in any form (smoking, eating, chewing) is dangerous to health. Gutkha, paan masalas, crude mixture of kattha, dried tobacco leaves mixed with lime, etc are consumed for their effects involving alertness, concentration, etc. They are in fact harmful to the users, They are associated with a number of illness starting from bronchitis, Chronic obstructive lung disease, ulcer in the oral cavity, stomach, high blood pressure, and the last but not the least tobacco can cause cancers of mouth, lungs, stomach, urinary bladder, heart attack, strokes, etc. the list is endless........... This is because of the above mentioned harmful nature of this slow poison, it is labelled as dangerous for our health. Take care! Regards!