By Priyanjana Pramanik, MSc. Reviewed by Susha Cheriyedath, M.Sc. Nov 13 2025 A plant-based drink and an animal-based meal triggered similar satiety hormone responses and small appetite reductions after breakfast, yet neither changed how much participants ate at lunch, suggesting that increasing protein at breakfast may support satiety without automatically reducing total energy intake. Study: The effect of consuming different dietary protein sources at breakfast upon self rated satiety,