 The National Health and Nutrition Survey 2018-19 Incident 2018-19 is a nationally representative survey conducted by the National Institute of Public Health, INS-P, Mexico. It is designed to provide information about the health and nutritional status of the Mexican population. The survey includes a sample of 44,069 households and 82,490 individuals from across the country. The survey also has a follow-up component which will allow researchers to track changes over time. This article was authored by Martín Romero-Martínez, Teresa Chamelevi, Edgar Vial Morozco, and others.