Diverticular disease in developed countries is blamed largely on a low fiber diet.

How does diet contribute to diverticulosis?

A diet low in fiber can create hard stools, and lead to constipation. As mentioned previously, with frequent and repeated straining during bowel movements, pressure inside the colon increases and contributes to the formation of diverticula. Adding more fiber to the diet can help prevent constipation and may decrease the risk for diverticular disease.