Do Grapes Cause Gas?

Grapes contain soluble fiber and fructose. Soluble fiber turns to gel in the body when consumed. According to Jackson Siegelbaum Gastroenterology, the gel created by soluble fiber is broken down by certain types of bacteria in the colon, which creates gas. As noted by WebMD, the fructose found in grapes can cause gas when it is fermented by bacteria in the colon and not properly absorbed in the small intestine.