Public health experts have expressed a concern about the long-term effects of shifting product use among tobacco and nicotine users.

“Some studies indicate that tobacco snus can increase the risk of four types of cancer,” said Lisa L. Ermann, an expert on tobacco and the environment with the Cancerfonden, or Swedish Cancer Society, who points to stomach, pancreatic, and rectal and esophageal cancers. “We don’t have the body of evidence to be sure.”

Snus research has mostly been conducted on men, but Rosaria Galanti, professor emerita at the department of global public health at the Karolinska Institutet, is worried about how nicotine pouch use among women will affect maternal and fetal health. Very small numbers of women still smoke during pregnancy, but data about the prevalence of nico

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