Pickled vegetables and salt-cured fish appear to be the most significant culprits in Asia. Also, both high levels of regular table salt (sodium chloride) as we

Pickled vegetables and salt-cured fish appear to be the most significant culprits in Asia. Also, both high levels of regular table salt (sodium chloride) as well as high levels of nitrate have each been linked to stomach cancer, so it doesn't have to be a nitrate-based salt to be of concern. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2682234/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2682234/, [2] http://cebp.aacrjournals.org/content/21/6/905 http://cebp.aacrjournals.org/content/21/6/905, [3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4291998/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4291998/