Vishwaswasthyam Preconference 2026 on “Application of Nutrigenetics in Metabolic Diseases – Tailoring Nutritional Genomics to Optimise Health, Fitness and Disease Prevention” was successfully conducted on 7th January 2026 , from 9:30 am to 4:30 pm at the FVEG Campus, Children Welfare Center, Orlem, Malad (W), Mumbai. The preconference brought together experts and participants to explore the evolving field of nutritional genomics. It featured insightful sessions by distinguished speakers including Dr. Debmalya Barh, Professor at the Federal University of Minas Gerais, Brazil, and Dr. Janani Tamilvanan, Director, Institute of Nutrigenetics, Coimbatore. The sessions provided a comprehensive understanding of fundamental genetic concepts, including genes, DNA, RNA, and gene expression, while highlighting the differences between genetics, genomics, nutrigenetics, and nutrigenomics. Participants gained valuable insights into gene–nutrient interactions and their implications in metabolic diseases such as obesity, diabetes, and thyroid disorders, along with the role of micronutrients and lifestyle factors in modulating genetic risk. The program emphasized the importance of genetic variability in influencing individual nutritional responses and showcased the growing relevance of genomics in personalized nutrition and preventive healthcare. Additionally, the preconference included hands-on learning experiences that enabled participants to translate nutrigenetic research into evidence-based clinical and dietetic guidelines, fostering the integration of genetic science into practical nutrition applications.