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Dietary fiber and type 2 diabetes
1Rush Presbyterian-St. Luke's Medical Center, Chicago, Illinois, USA.
Clinical Excellence for Nurse Practitioners : the International Journal of NPACE
|February 23, 2002
Summary
Increasing dietary fiber intake to 20-35g daily can significantly improve type 2 diabetes management by lowering blood glucose and lipid levels. Soluble fiber, particularly viscous types, offers greater benefits for glycemic control and insulin sensitivity.
Area of Science:
- Nutrition Science
- Endocrinology
- Metabolic Disorders
Background:
- Type 2 diabetes mellitus (DM) management requires strategies to control hyperglycemia and dyslipidemia.
- Dietary fiber intake is increasingly recognized for its potential role in metabolic health.
Purpose of the Study:
- To review the current evidence on dietary fiber's impact on type 2 DM.
- To explore the mechanisms by which fiber influences glycemic and lipid profiles.
- To provide recommendations for fiber intake in type 2 DM patients.
Main Methods:
- Literature review of studies on dietary fiber and type 2 DM.
- Analysis of research on soluble vs. insoluble fiber effects.
- Examination of fiber's impact on postprandial glucose and insulin levels.
Main Results:
- Dietary fiber intake flattens postprandial glycemic and insulinemic responses.
- Water-soluble fiber demonstrates a greater effect on reducing blood glucose, insulin, and serum lipids.
- Increased viscosity of fiber correlates with enhanced metabolic benefits.
Conclusions:
- Patients with type 2 DM should aim for 20-35g of dietary fiber daily.
- Fiber intake can improve insulin sensitivity and delay glucose absorption.
- Healthcare providers, such as nurse practitioners, should promote increased fiber consumption.