Hasnain, Sidra, Faiza Naheed, Aiman Mahmood, Umar Raees, Maria Fareed Siddiqui, and Maha Ikram. 2026. “Dose-Dependent Effects of Caffeine on Cognitive Performance, Hormonal Regulation, and Gut Microbiota across Adulthood: Dose-Dependent Effects of Caffeine on Cognitive Performance and Gut Microbiota”. DIET FACTOR (Journal of Nutritional and Food Sciences) 7 (2): 15-20. https://doi.org/10.54393/df.v7i2.213.