In the pooled analysis of seven studies, “high” and “moderately high” versus “low” salt intake were both associated with increased risk of stomach cancer and respectively, with no evidence of publication bias, the researchers wrote.
“The association was stronger in the Japanese population and higher consumption of selected salt-rich foods was also associated with greater risk,” they added.
The researchers concluded: “Dietary salt intake was directly associated with risk of gastric cancer in prospective population studies, with progressively increasing risk across consumption levels.”
It’s worth noting that the evidence linking salt to cancer risk is not conclusive.