Irena Keser graduated in 2003 at the Faculty of Food Technology and Biotechnology, University of Zagreb, study Food Technology, course Nutrition. In the same year she started to work as a professional associate, and then as a research fellow in a Laboratory for Nutrition Science at the Faculty of Food Technology and Biotechnology, University of Zagreb. In 2010 she received a PhD degree with PhD thesis titled “Association of serum folate, vitamin B12 and homocysteine levels with bone mineral density in elderly women”. She became an assistant professor in 2015. In her former scientific work she deals with the assessment of diet quality of different population groups, especially the elderly, and the influence of diet on bone mineral density. She has participated in two scientific projects of Ministry of Science, Education and Sport, and two professional projects. As coauthor she published 12 scientific papers from a1 group, 2 from a2 group, and 6 scientific papers in international conference proceedings. During 2009 and 2011 she attended scientific training at the Human Nutrition & Metabolism Research and Training Center, Institute of Molecular Biosciences, Karl-Franzens University in Graz, Austria. She participates in teaching on courses of undergraduate, graduate, and PhD studies Nutrition at the Faculty of Food Technology and Biotechnology, University of Zagreb (Nutrition Science 1, Nutrition Science 2, Obesity and underweight, Nutrition and aging, Methods for diet quality assessment, Nutrition and bone health).