1 Preprint: Please note that this article has not completed peer review. Macronutrients, immunoglobulin A and total antioxidant capacity of human milk during prolonged lactation CURRENT STATUS: Under Revision krongporn ongprasert, Jetsada Ruangsuriya, Rungnapa Malasao, Ratana Sapbamrer, Pikul Suppansan, Pisittawoot Ayood, Kulnipa Kittisakmontri, Penprapa Siviroj krongporn ongprasert Chiang Mai University krongporn.o@cmu.ac.th Corresponding Author ORCiD: https://orcid.org/0000-0002-2766-7046 Jetsada Ruangsuriya Chiang Mai University Faculty of Medicine Rungnapa Malasao Chiang Mai University Faculty of Medicine Ratana Sapbamrer Chiang Mai University Faculty of Medicine Pikul Suppansan Maharaj Nakorn Chiang Mai Hospital Pisittawoot Ayood Chiang Mai University Faculty of Medicine Kulnipa Kittisakmontri Chiang Mai University Faculty of Medicine Penprapa Siviroj Chiang Mai University Faculty of Medicine