Food Portion Size Estimation for Developing a Healthy Eating Index: Influence of Unit Count and Energy DensityAlfi Fairuz Asna, Apoina Kartini, Dina Rahayuning Pangestuti, Naintina Lisnawati and Jazzimatul HusnaBIO Web Conf., 133 (2024) 00006DOI: https://doi.org/10.1051/bioconf/202413300006