Nutrition Expo is an annual flagship event organized by the Nutrition Department, Faculty of Public Health, Universitas Indonesia. Since its inception in 2010, Nutrition Expo has woven core nutrition principles into every activity, from seminars and competitions to hands-on workshops. It brings together senior high students, undergraduates (bachelor, master, and doctoral), clinicians, academics, public-health professionals, and the broader community. Building on the success of previous editions, each attracting over 500 participants, we're delighted to present the 15th Nutrition Expo (NE 2025). Under this year’s theme, “Protein and You: Nutrition for Every Chapter of Life” we’ll explore how protein shapes health from infancy through old age, empowering each of us to live stronger, healthier lives and to safeguard the well-being of the generations to come. Join us in celebrating the building blocks of life!