Safarvanadeh, M., Salehi, L., & Mahmoodi, Z. (2025). Fluid intake, fiber consumption, and physical activity related to constipation among elderly, which one is more important? A cross-sectional study in Iran. The North African Journal of Food and Nutrition Research, 9(19), 30–40. https://doi.org/10.51745/najfnr.9.19.30-40