FASTING

This study looks at whether eating solid food before a hand surgery called WALANT (where you're awake but numb) helps patients feel less anxious and nauseous. About 134 adults will be randomly told to eat or fast before their procedure. Researchers will compare anxiety, nausea, a…

This study looks at what happens in the body during prolonged fasting and whether those changes could be used against breast cancer cells in a lab. Researchers will collect blood samples from 15 healthy adults before, during, and after a 3-day fast. They will then test how the bl…

This study looks at whether a simple stomach ultrasound can reliably measure how much food or liquid is left in a child's stomach before surgery. Researchers will compare ultrasound results with a standard blood test in 60 children aged 2 to 18. The goal is to find a safer, faste…

This study looks at whether patients in the ICU with severe breathing problems can safely keep eating and drinking before they need a breathing tube, instead of fasting. Current practice is to fast, but this may cause discomfort and lack of nutrition without clear benefit. The st…

This study looks at how a 36-hour water-only fast changes the immune system in healthy adults aged 20-40. Researchers will measure changes in immune cells and genes before, during, and after the fast. The goal is to understand if short-term fasting can alter immune function in a …

This study looks at how much clear liquid (like water or juice) teenagers can safely drink before an upper GI endoscopy. About 288 teens aged 13-17 will be split into four groups, each drinking a different amount two hours before the procedure. Doctors will measure the leftover s…