FDA officials said Thursday that Zyn contains fewer harmful ingredients than cigarettes and various types of chewing tobacco, including snuff, which are linked to cancer and other life-threatening diseases
Cardiovascular risks include increased heart rate and blood pressure, greater risk of heart attack and stroke, and potential for irregular heart rhythms
Nonetheless, the United States Smokeless Tobacco Company (UST), makers of Skoal and Copenhagen, has succeeded in promoting its products as a safe alternative to cigarettes
In terms of prognosis, recent clinical studies indicate that former smokers diagnosed with esophageal cancer, especially squamous cell carcinoma, have better survival outcomes than current smokers
[3] [31] In Victorian era Britain, a few miracle "snake oil" claims on the health or curative benefits of certain snuff types surfaced in publications