7-Ketolithocholic Acid, a naturally occurring bile acid, is a novel food currently under investigation for potential metabolic benefits, including glucose-lowering effects. This study aims to evaluate the efficacy and safety of 7-Ketolithocholic Acid, administered alongside a low-glycaemic, hypocaloric diet, and increased physical activity in reducing fasting plasma glucose and other metabolic parameters in subjects with prediabetes. Demonstrating a clinically meaningful glucose-lowering effect would support its potential role in early intervention to prevent or delay the onset of type 2 diabetes.