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NCT07142486
Omeprazole is a proton pump inhibitor commonly used to reduce stomach acid in the treatment of heartburn, gastroesophageal reflux disease, and gastric ulcers. By blocking the H⁺/K⁺-ATPase pumps in the gastric lining, it raises gastric pH and can alter the normal activation of pepsin, the enzyme responsible for beginning protein breakdown in the stomach. Under normal conditions, dietary proteins are denatured by gastric acid and cleaved by pepsin into smaller peptides. These peptides enter the small intestine, where pancreatic enzymes (trypsin, chymotrypsin) and brush-border peptidases (aminopeptidase, dipeptidase) further hydrolyze them into free amino acids that are absorbed into the bloodstream. Suppressing stomach acidity may allow larger peptides to pass into the intestine, potentially reducing the efficiency of amino acid liberation and absorption. In this randomized, crossover study, adults aged 50-60 years will attend two study visits at least one week apart. In one visit they will take a standard dose of omeprazole before consuming a mixed meal with a fixed protein content; in the other visit they will consume the same meal without medication. Blood samples will be collected before the meal and at multiple time points afterward to measure plasma amino acid concentrations and compare postprandial responses. Older adults experience anabolic resistance, meaning they require higher protein intakes to stimulate muscle protein synthesis effectively. If omeprazole reduces amino acid availability after a meal, individuals taking this medication may need adjusted dietary protein recommendations. Findings from this study will help refine nutrition guidelines for people on proton pump inhibitors and support optimal muscle health and recovery in middle-aged and older adults.
NCT06516744
This virtual single-group study aims to evaluate the efficacy of Bye Bye Bloat Capsules in relieving hormonal and food-related bloating and promoting healthy digestion. The study will last 4 weeks, involving 40 female participants aged 18+ who will take two capsules after meals and during times of bloating. Measurements and questionnaires will be completed at Baseline, first use, Week 2, and Week 4.
NCT06476236
This 3 month pilot study will be an unblinded, convenience sampling, nutraceutical intervention trial. Twenty fasted subjects will undergo a baseline health assessment via a questionnaire, baseline clinical chemistries, blood lipids, dexa and impedence testing (to identify bone mineral density and body muscle/fat/water composition), and metabolite/novel biomarker testing through whole capillary blood, saliva, and urine collections. Assessments will be repeated every month (3 times after initial assessment) to cover a 3 month period. All measurements from each visit will be compared with baseline using paired t-tests or Chi square testing depending on variable. Power analyses are not included due to the pilot nature of the study. This pilot study will provide the necessary variability estimates for future trials.
NCT03749031
This is a randomized crossover intervention designed to evaluate effects of daily intake of beverages containing orange or apple Pomace on gastrointestinal function as measured by stool frequency. Additional outcomes will include aspects of digestive health and self-reported GI symptoms and dietary intake as well as analysis of gut microbiota.