Dietary Fiber

Definition

Dietary fiber is a type of carbohydrate found in plants that your body can't digest. It helps regulate the body's use of sugars, helping to keep hunger and blood sugar in check.

Scientific / Technical Definition

Dietary fiber refers to a group of complex carbohydrates that are resistant to digestion and absorption in the human small intestine, with complete or partial fermentation occurring in the large intestine. It is essential for maintaining the structural integrity of plant cell walls and plays a key role in the regulation of metabolic processes in the human body.

Benefits

• Promotes regular bowel movements and prevents constipation.
• Helps maintain a healthy weight.
• Lowers the risk of diabetes and heart disease.
• Improves cholesterol levels.
• Helps control blood sugar levels.

Examples

• Whole grains
• Fruits
• Vegetables
• Legumes
• Nuts and seeds

Additional Information

• Effects: Dietary fiber slows the decomposition of food in the stomach and regulates blood sugar levels and satiety. It also leads to increased stool bulk, and can reduce the risk of diverticular disease and hemorrhoids.

Related Terms

• Soluble Fiber
• Insoluble Fiber
• Carbohydrates
• Whole Grains
• Nutrition

References

• Dietary Fiber: Essential for a Healthy Diet
• The Role of Dietary Fiber in Health