A balanced diet is central to strong health, and fiber plays a key role in keeping the body running well. It helps stool move through the gut, supports healthy body weight, and assists in regulating blood glucose levels.

How to increase fiber in your diet?
Start by swapping white bread and refined products for whole-grain versions. Choose whole grains such as buckwheat or barley instead of potatoes. Add fresh fruit or vegetables to every meal. Legumes and nuts are also reliable ways to raise daily fiber intake, though pay attention to their calorie density—cashews provide about 553 kcal per 100 g, while macadamia nuts provide about 718 kcal per 100 g.
The right amount of fiber supports intestinal health not only by aiding the gastrointestinal tract itself but by stimulating bowel movements and improving transit of food. Dietary fiber acts in the intestines like a broom, gently irritating the intestinal walls and enhancing peristalsis through improved blood flow.
Where to find fiber?
Fruit choices high in fiber include banana, blackberries, pear, apple, raspberries, currants, and dried fruits—especially apricots and peaches. Cereal products and nuts are among the richest fiber sources.
Good options are cornflakes, whole-grain breads, nuts, wheat bran, pumpkin seeds, rye and oat flakes, brown rice, sesame, and coconut flakes. If you need a single top pick from this list, wheat bran is the best choice.
Among vegetables and legumes, strong choices are horseradish, garlic, white beans, red beans, green peas, carrot, parsley, and celery.
Note that people with intestinal conditions such as irritable bowel syndrome (IBS) should avoid insoluble fiber. Products like bran, nuts, and some legumes can worsen symptoms for those individuals.