Mediterranean Diet and Time-Restricted Feeding in Ulcerative Colitis Remission
Mediterranean Diet and Time-Restricted Feeding Intervention to Improve Gut Health, Quality of Life and Inflammation in Patients With Ulcerative Colitis in Remission: A Pilot Randomized Controlled Trial
Pontificia Universidad Catolica de Chile
45 participants
Apr 10, 2026
INTERVENTIONAL
Conditions
Summary
This study will evaluate whether a 12-week dietary intervention can improve gut health, inflammation, and quality of life in adults with ulcerative colitis in remission. Participants will be randomly assigned to one of three groups: a Mediterranean diet, a Mediterranean diet combined with time-restricted feeding (eating within an 8-hour window each day), or standard dietary advice. The Mediterranean diet emphasizes fruits, vegetables, whole grains, legumes, nuts, olive oil, and fish, while limiting processed foods and red meat. The main outcome will be changes in short-chain fatty acids in stool samples, which are markers of gut health. Additional outcomes include changes in inflammation markers, gastrointestinal symptoms, and quality of life. The results of this study may help identify effective dietary strategies to support patients with ulcerative colitis.
Eligibility
Plain Language Summary
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Interventions
Participants will receive individualized nutritional counseling to follow a Mediterranean diet, emphasizing high intake of fruits, vegetables, whole grains, legumes, nuts, olive oil, and fish, and reduced consumption of red meat and ultra-processed foods. Dietary plans will be tailored to individual energy requirements.
Participants will follow a time-restricted feeding protocol (16:8), consisting of a daily 16-hour fasting period and an 8-hour eating window (12:00-20:00). During the eating window, participants will consume meals based on Mediterranean diet guidelines, with individualized dietary counseling to ensure adequate nutritional intake.
Participants will receive standard dietary counseling based on current clinical guidelines for ulcerative colitis. This includes general recommendations for a balanced diet without specific emphasis on Mediterranean dietary patterns or time-restricted feeding.
Locations(1)
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NCT07752446