Dr Janiszewska is a sports nutrition scientist, lecturer and sports dietitian with 13 years of experience as a National Olympic Taekwondo athlete. After completing her PhD on pre-competition weight loss in taekwondo she created a unique nutrition training program for coaches. As a lecturer and Chair of the Health and Safety Committee of the World Taekwondo Europe (European Taekwondo Union), she spreads knowledge about health-centred pre-competition weight loss. Dr Janiszewska is also a part of the Athletes2gether platform that brings competitive & retired athletes together, across the entire world, all sports and ages. Katarzyna Janiszewska has been a committee member of the European Specialist Dietetic Network (ESDN) for Sports and Physical Activity since 2018.