How can soluble fibre help with a diabetes mellitus diet?

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An anatomical illustration of the human pancreas shows its location near the stomach and intestines, a detailed cross-section highlighting ducts and the islet of Langerhans, and an inset of pancreatic tissue histology with labeled alpha, beta, and delta cells. — diabetes mellitus The islets of Langerhans are responsible for the endocrine function of the pancreas. Each islet contains beta, alpha, delta, and pancreatic polypeptide (PP) cells that are responsible for the secretion of pancreatic hormones. Beta cells secrete insulin, a well-characterized hormone that plays an important role in regulating glucose metabolism.

Soluble fiber is a beneficial component of a diabetes mellitus diet because it slows gastric emptying. By delaying the rate at which food leaves the stomach, soluble fiber helps regulate the absorption of nutrients, which can assist in managing blood glucose levels.1

Additionally, fiber contributes to satiety, helping individuals feel full longer, which supports healthy weight management—a key factor in controlling diabetes. Beyond glucose regulation, fiber is essential for overall health as it helps reduce plasma cholesterol levels, thereby lowering the risk of heart disease, a common complication for those with diabetes. Excellent sources of dietary fiber include whole grains, legumes, vegetables, nuts, and fruits.1