Impact of High-Protein, High-Fiber Versus Low-Protein, Low-Fiber Pre-Fast Meals on Appetite and Blood Sugar During Fasting in Healthy Adults

What this Trial Is About

Researchers are investigating how a high-protein, high-fiber meal eaten before fasting affects feelings of fullness and blood sugar levels during fasting hours in healthy adults. This randomized crossover study compares a standardized high-protein, high-fiber pre-fast meal to a low-protein, low-fiber meal guided by dietary instructions, aiming to understand their impact on appetite and glycemic responses. Participants will complete two study periods, each lasting two consecutive days, with a three-day break in between. In one period, they will consume a provided high-protein, high-fiber meal including oats, Greek yogurt, peanut butter, dried cranberries, and almonds. In the other period, they will follow written instructions to consume a low-protein, low-fiber pre-fast meal without calorie limits. Throughout the study, participants feelings of hunger, fullness, desire to eat, and anticipated food intake will be measured at specific times during fasting. Blood sugar levels will be continuously monitored using a glucose monitor. Researchers will analyze the relationship between glucose changes and appetite sensations. The study includes fasting, meal consumption, monitoring, and washout phases to thoroughly evaluate effects.

Effect of a High-Protein, High-Fiber Pre-Fast Meal on Satiety and Glycemic Profiles During Fasting