Dietary fibers affect the processes of energy intake, food ingestion and absorption of nutrients in the gastrointestinal tract, boost neuroendocrine responses, lead to modulation of release of appetite-regulating hormones implicated in energy balance and regulating the feelings of satiety and hunger.

A review was carried out for expanding the knowledge about the influence of dietary fibers on the secretion of major gastrointestinal (GI) hormonal peptides implicated in appetite control, formation of feelings of hunger, satiation, and satiety.

This review offers a summary of information on the impact of dietary fibers on the generation of essential GI hormonal peptides implicated in the regulation of eating behavior and appetite control. It also discusses the mechanisms of action of dietary fibers on the production of regulatory peptides related to feelings of satiety and hunger.

As physiological regulators of food consumption, the GI hormones show a pivotal role in forming feelings of satiety, satiation, and hunger. Also, it aids to minimize appetite and help in maintaining normal body weight. Numerous dietary fibers can exhibit a modulating impact on the secretion of the hunger hormone ghrelin and hormones of satiety: leptin and intestinal peptides (YY peptide, cholecystokinin, and glucagon-like peptide-1). This is dependent on the physic-chemical properties and the amount and duration of the consumption period. 

By integrating dietary fibers in the form of natural food and dietary supplements, it is feasible to create a favorable profile of endogenous GI hormones, thus ensuring a reduction in appetite and maintaining normal body weight.