Dietary fibers make three primary contributions: bulking, viscosity and fermentation.[53] Different fibers have different effects, suggesting that a variety of dietary fibers contribute to overall health. Some fibers contribute through one primary mechanism.
Different dietary fiber supplements were associated with different health benefits, such as decreased cholesterol and increased numbers of beneficial bacteria. The findings suggest that the health benefits of dietary fiber depend on the fiber type, the amount, and the individual.
Is fibre the new protein? The surprising health benefits of the latest wellness trend.Some typical fibre-rich foods. Here's a sample meal plan from Stavridis on how you can hit 30g fibre in a day (note that fibre quantities vary by brand and portion size)
The beneficial impact of dietary fiber on health is associated with its actions within the gastrointestinal tract. The positive impacts of DF on human health have been proven, exemplified by its effects on immunity, diabetes, cancer, and cardiovascular disorders.

But while the health benefits of a fibre-rich diet have been recognised since the 1950s, only in recent years have we gotten a firmer handle on the full complexity of this diverse substance and how to maximise these positive effects.
The findings suggest that the health benefits of dietary fiber depend on the fiber type, the amount, and the individual. Fiber is an essential part of a healthy diet. High fiber diets have been linked to health benefits such as improved metabolism and heart health.
Explore the top health benefits of dietary fiber. Boost digestion, manage weight, support heart health, regulate blood sugar, and maintain gut health.

WHO fact sheet on healthy diet with key facts and information on essential dietary elements, practical advice, salt, sodium and potassium, sugars, health diet promotion, WHO response.
But the health benefits of dietary fiber vary across individuals and may depend on the specific type of fiber and the dose consumed, according to a new study.To address this question, Snyder and his colleagues assessed the effects of different dietary fibers on a group of adults.