Fiber, often called roughage, is a type of carbohydrate that the body can’t digest. Unlike other carbohydrates, fiber doesn’t break down into sugar molecules. Instead, it passes relatively intact through the digestive system.
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Types of Fiber
There are two main types of fiber:
- Soluble Fiber: Dissolves in water to form a gel-like material. It can help lower blood cholesterol and glucose levels. Sources include oats, peas, beans, apples, citrus fruits, and carrots.
- Insoluble Fiber: Promotes the movement of material through your digestive system and increases stool bulk, so it can be of benefit to those who struggle with constipation or irregular stools. Whole-wheat flour, wheat bran, nuts, beans and vegetables, such as cauliflower, green beans and potatoes, are good sources of insoluble fiber.
Benefits of Fiber
A high-fiber diet offers numerous health benefits:
- Improved Digestive Health: Helps prevent constipation and maintain bowel health.
- Lower Cholesterol: Soluble fiber can reduce LDL (“bad”) cholesterol.
- Blood Sugar Control: Soluble fiber slows the absorption of sugar, improving blood sugar levels.
- Weight Management: High-fiber foods tend to be more filling, which can help with weight control.
- Reduced Risk of Chronic Diseases: Studies suggest a link between high-fiber diets and a reduced risk of heart disease, type 2 diabetes, and some cancers.
Sources of Fiber
Excellent sources of fiber include:
- Fruits (apples, bananas, berries)
- Vegetables (broccoli, carrots, spinach)
- Whole Grains (oats, brown rice, quinoa)
- Legumes (beans, lentils, peas)
- Nuts and Seeds
Increasing Fiber Intake
Gradually increase your fiber intake to avoid gas and bloating. Drink plenty of water to help fiber move through your digestive system.
