Microbiome

This trial investigates whether fecal microbiota transplantation (FMT) can treat alopecia areata, an autoimmune condition causing patchy hair loss. Researchers will give adults with alopecia areata either FMT or a placebo for three days and track hair regrowth, immune changes, an…

This study looks at whether eating yogurt every day can help children think better and have a healthier gut. Researchers will give 60 kids, ages 7 to 9, either fruit juice or yogurt smoothies for four weeks. They will measure memory, focus, brain activity, and gut bacteria to see…

This study tests whether two dietary supplements can help adults who are poor sleepers improve their sleep quality, thinking skills, and stress levels. Over 28 days, 68 participants will take either an active supplement or a placebo. Researchers will measure sleep efficiency, gut…

This trial asks whether a daily prebiotic supplement called FiberSmart can change the bacteria living in the small intestine of healthy adults. Researchers will give 30 participants either FiberSmart or a placebo for 21 days. They will use a special capsule to sample the small in…

This study looks at how a prebiotic supplement called FiberSmart changes the bacteria in the small intestine of healthy adults. Thirty participants will take either the supplement or a placebo daily for 21 days. A special capsule is used to sample the small intestine directly, gi…

This study tests whether taking a probiotic (live bacteria) or a postbiotic (heat-inactivated bacteria) can keep the gut microbiome healthy while people take antibiotics. About 126 healthy adults will receive one of these supplements or a placebo daily for 28 days. Researchers wi…

This study looks at whether taking probiotics after a course of antibiotics can help restore the natural balance of bacteria in the gut. Fifty adults aged 18-40 who are prescribed a cephalosporin antibiotic will take either a probiotic supplement or a placebo for several weeks. R…

This observational study will compare the gut and urine bacteria, as well as metabolic profiles, of 120 people with ureteral stricture (a narrowing of the tube from kidney to bladder) against healthy volunteers. Researchers aim to find differences that could explain why the condi…