This single-center, single-blind, non-randomized crossover exploratory study evaluated the short-term effects of NatureU Burn on postprandial satiety in healthy adults. NatureU Burn is an oral dietary supplement containing Irvingia gabonensis seed extract and high-molecular-weight inulin. Fourteen healthy adults were enrolled, and 12 participants completed the study and were included in the effectiveness analysis. Each participant completed two test sessions separated by at least 48 hours: a reference food session with 75 g medical anhydrous glucose in 250 mL warm purified water and a test food session with one capsule of NatureU Burn plus 75 g glucose in 250 mL warm purified water. Satiety-related questionnaire scores were assessed at fasting baseline and at 30, 60, 90, 120, 180, and 240 minutes after the first bite in each session. The study assessed fullness, hunger, desire for food, and prospective food consumption, and monitored adverse reactions.