As an essential component of a healthy diet, dietary fiber has several benefits, including improving our digestive health, aiding in weight management, regulating our blood sugar levels and supporting our heart health.
Last week we spoke about some of these benefits in more detail. This week we cover a few more benefits as well as the types of fiber and the quantities we should be consuming. Some additional benefits include:
Fiber reduces the risk of chronic diseases and promotes longevity
Fiber may reduce the risk of developing colon cancer and diets rich in fiber are also linked to a reduced risk of cardiovascular disease.
High fiber intake is associated with a reduced risk of mortality from various causes, including cardiovascular diseases and infections.
Fiber enhances skin health
Fiber helps to flush out toxins and excess hormones from the body, potentially reducing skin issues such as acne.
Types of fiber include:
- Soluble Fiber
- Insoluble Fiber
The key difference between soluble and insoluble fiber lies in how it interacts with water, and how each type benefits our bodies.
Soluble fiber
- Dissolves in water to form a gel-like substance.
- Found in oats, barley, beans, lentils, apples, citrus fruits, carrots, and psyllium.
- Functions and Benefits:
- Slows digestion, helps us feel full for longer and stabilizes our blood sugar levels.
- Lowers cholesterol by binding to cholesterol in the gut and reducing LDL (“bad”) cholesterol.
- Supports gut health by acting as food for beneficial gut bacteria, promoting a healthy microbiome.
- Best for managing blood sugar, improving cholesterol levels, and supporting heart health.
Insoluble fiber
- Does not dissolve in water but adds bulk to stool. It passes through the digestive tract largely intact.
- Found in whole grains (like whole wheat, brown rice), nuts, seeds, and vegetables (such as cauliflower, green beans, and potatoes).
- Functions and Benefits:
- Promotes regularity by adding bulk to our stools and preventing constipation.
- Supports colon health by helping to maintain a healthy digestive system and promoting regular bowel movements.
- Speeds waste movement by reducing the time it takes for waste to move through our colon and possibly reducing the risk of colon issues.
- Best For alleviating constipation and promoting digestive health.
How much fiber do we need?
- Women: About 21–25 grams per day.
- Men: About 30–38 grams per day.
Meat contains no dietary fiber because fiber is only found in plant-based foods. Animal products such as meat, poultry, fish, eggs, and dairy do not contribute any fiber to your diet. If you’re looking to add fiber to meals that include meat, consider pairing it with high-fiber plant-based side dishes like:
- Vegetables (broccoli, spinach, or sweet potatoes)
- Whole grains (quinoa, brown rice, or barley)
- Legumes (beans, lentils, or chickpeas)
Here’s a sample of foods that will equate to about 21g of fiber:
- Breakfast: Oats with Berries
- 1 cup cooked oats: 4g fiber
- ½ cup raspberries: 4g fiber
- Snack: Almonds
- about 23 almonds: 3.5g fiber
- Lunch: Lentil Soup
- ½ cup cooked lentils: 7.5g fiber
- Dinner: Steamed Broccoli
- 1 cup steamed broccoli: 2g fiber
Increasing dietary fiber intake gradually and drinking plenty of water is essential to avoid bloating or discomfort.
Listen to my interview with Brad Kirsten from Radio Cape Pulpit on 12 December 2024 to learn more. Listen to my next interview on Thursday at 7.45am.