While smokeless tobacco has demonstrably less carcinogens and toxins than cigarette smoke, said Hecht, smokeless tobacco still has remarkably high levels of carcinogenic tobacco-specific nitrosamines levels that are 100 to 1,000 times higher than in any other consumer product that is designed for oral consumption. In a separate study, the team evaluated carcinogen biomarker levels in individuals using these products
CA Cancer J
It's advertised as a chewing tobacco, not sure how the manufacturing process differs from pipe tobacco
In areas with severe environmental pollution, air contains a higher concentration of harmful gases such as SO 2 , NO X , and O 3 , which can also stimulate and damage the respiratory tract, leading to airway remodeling and an increased risk of COPD [45]
In adults, frequent or chronic sore throat could be a sign of throat or tonsil cancer in rare cases