1. Introduction
bloating, satiety, constipation, gastrointestinal complaints
CHRONIC DISEASES
Consumption of fiber-rich foods is linked to beneficial effects on chronic diseases and gut health, while implications towards improving satiety and parameters of well-being remain unclear. A randomized placebo-controlled intervention study was conducted to compare the effects of fiber-enriched foods to their non-enriched counterparts in adults over a 12-week period on selected clinical parameters—satiety, quality of life, body sensation, and life satisfaction—subjective health status, and importance of diet for well-being. Quality of life (QOL) differed significantly between intervention and control groups at baseline, throughout, and at the end of the study. No effects on satiety, satisfaction with life, or the importance of diet for well-being could be shown between groups. With higher fiber intake, body sensation ratings increased. A higher BMI was significantly associated with lower-body sensation, subjective health status and quality of life. Fiber-enriched foods do not seem to affect feeling of satiety or parameters of well-being. Larger samples and additional methods are necessary to fully explore the effect of increased fiber intake on patient-related outcomes in more detail.Benefits of high fiber and whole grain intake for human health are well known [In addition to the health benefits mentioned above, dietary fiber is also considered to increase satiety. Approaches to improve satiety through appropriate food choices remain relevant due to the high prevalence of overweight and obesity. While oat fiber ([Fiber-rich foods are known for their risk of causing short-term gastrointestinal complaints such as bloating, but acceptance and tolerance often increase after getting used to a higher fiber intake [Low-fiber diets are associated with an increased prevalence of constipation complaints, and fiber-rich foods, especially foods containing soluble fiber, show potential for reducing the severity of those symptoms. Dietary fiber could, therefore, relieve constipation, consequently improving quality of life (QOL) [Regardless of food-related QOL, Ramin et al. studied how fiber intake relates to mental-health-related QOL in postmenopausal women [