Dietary fiber is much more than just a "digestive aid." It plays an important role in our health and is an essential part of a balanced diet. A diet rich in dietary fiber helps maintain healthy gut flora, promotes digestion, and can reduce the risk of cardiovascular disease, type 2 diabetes, and obesity.
Nevertheless—in Germany, at least—most people don’t eat enough fiber. Yet it’s not hard at all to incorporate more fiber into your daily diet: whole-grain products, legumes, vegetables, fruits, nuts, and seeds are all rich sources of fiber. In addition, it can be helpful to increase your fiber intake with the help of dietary supplements. In this article, we’ll show you how high-fiber foods work, what amounts are recommended, and how you can incorporate them into your daily routine—for a lighter feeling, more energy, and improved well-being.
What is dietary fiber, and why is it so important?
Dietary fiber consists of indigestible components of food that are found primarily in plant-based foods. There are two types of dietary fiber: soluble and insoluble. Both types serve important functions:
- Soluble fiber, such as that found in oatmeal, psyllium husks, or fruit, binds water, swells in the intestines, and serves as food for beneficial gut bacteria. As a result, it has a prebiotic effect, supports a healthy gut microbiome, and helps stabilize blood sugar levels.
- Insoluble fiber is found primarily in whole-grain products, vegetables, and nuts. It is indigestible, stimulates bowel movements, increases stool volume, and thus promotes regular digestion.
The combination of these two types of fiber acts as a natural shield for intestinal health. When accompanied by adequate fluid intake, they promote regular digestion, ensure a healthy intestinal environment, and can thus help prevent intestinal problems such as abdominal pain, bloating, or nausea.
What is the optimal amount of fiber per day?
The German Nutrition Society (DGE) recommends that adults consume at least 30 grams of fiber daily. On average, however, people in Germany consume only about 20 to 25 grams per day.
Even small changes in your daily routine can make a difference: oatmeal in the morning, a handful of nuts as a snack between meals, and two to three servings of fruits and vegetables provide a solid foundation. Legumes such as lentils or beans are also excellent sources of fiber and can be easily incorporated into hot dishes.
It is important to increase your fiber intake gradually so that your digestive system can adjust to the new diet. A balanced intake not only promotes healthy digestion but, according to studies, can also lower the risk of cardiovascular disease, obesity, and type 2 diabetes.
What are the best sources of fiber-rich foods?
Dietary fiber is found in abundance primarily in largely unprocessed plant-based foods. The best sources are:
- Whole-grain foods: Whole-grain bread, oatmeal, brown rice, and whole-grain pasta provide not only dietary fiber but also valuable vitamins and minerals.
- Legumes: Lentils, chickpeas, and beans are packed with fiber. Just one serving covers a large portion of your daily requirement.
- Fruits and vegetables: Berries, pears, apples (with the skin on), carrots, broccoli, and kale are particularly high in fiber.
- Nuts and seeds: Almonds , flaxseeds, and sunflower seeds are high in unsaturated fatty acids and also rich in fiber.
The combination of different sources ensures that both soluble and insoluble dietary fiber are consumed. This is because both are essential for a healthy gut: While insoluble dietary fiber stimulates digestion, soluble dietary fiber serves as a valuable food source for beneficial gut bacteria.
Dietary Fiber for Weight Loss: Support for Weight Management
Dietary fiber is a valuable ally in weight loss. Because it swells when exposed to liquid, it helps you feel full for a long time. At the same time, it has a positive effect on insulin release, helping to prevent cravings.
A high-fiber diet therefore has a positive effect on blood sugar levels. It slows down the breakdown of carbohydrates into glucose in the intestines and, consequently, the release of glucose into the bloodstream, which reduces blood sugar fluctuations. This not only promotes a feeling of fullness but also aids in calorie control and supports healthy eating habits.
Practical tips for everyday life: Make a point of including high-fiber foods in every meal—such as whole-grain bread instead of white bread, a colorful side dish of vegetables with lunch, or a high-fiber snack like hummus with raw vegetables.
Important: Be sure to drink enough water! This is the only way for dietary fiber to work effectively in your intestines. If you don't drink enough, dietary fiber can actually have the opposite effect and lead to bloating or constipation.
Adding Fiber: What Supplements Are Available?
For people who have difficulty meeting their fiber needs through diet alone or who want to specifically support their gut flora, fiber-rich dietary supplements can be a helpful addition. Soluble fiber is particularly valuable in this regard: It feeds the “good” gut bacteria, promotes the diversity of the gut microbiome, and supports digestion, the immune system, and metabolism.
- Each serving of Präbioma contains 4 selected types of soluble dietary fiber that are very well tolerated and specifically support the growth of beneficial gut bacteria. They serve as food for the good gut bacteria (e.g., lactic acid bacteria and bifidobacteria).
- The Probiotics Gut Cure Original combines high-quality live probiotic bacterial strains (Pro EM san) with nutrients to regenerate the gut flora (Pro Mucosa) and soluble dietary fiber (Pro Präbioma), which feed your gut bacteria.
- Pro Basan Complete contains 12 probiotic bacterial strains, soluble fiber, and B vitamins. It provides a holistic supply of vitamins and specific nutrients, such as inulin, that have a positive effect on the intestinal environment.
This makes it easy to add fiber to your daily routine—especially during stressful times or when your diet isn't quite balanced.
Conclusion: Fiber for Greater Well-Being
Dietary fiber is a very important component of our health—far beyond its well-known effect on digestion. It nourishes healthy gut flora, supports the body’s natural detoxification process, and can help reduce the risk of chronic diseases such as type 2 diabetes mellitus or coronary heart disease (CHD). At the same time, it promotes long-lasting satiety, stabilizes blood sugar levels, and thus makes a valuable contribution to weight management.
Natural, unprocessed foods form the foundation of a high-fiber diet: whole-grain products, fresh vegetables, fruits, legumes, nuts, and seeds should be part of your daily diet. Those who also rely on high-quality dietary supplements such as Pro Präbioma, the Probiotics Gut Cure Original, or Pro Basan Complete can support their gut health in a targeted and effective way.
It's important to gradually increase your fiber intake and always make sure you're drinking enough fluids. That way, you can make the most of the positive effects and improve your well-being in the long term.
