Jazmin Castañeda holds a Nutrition degree (University of State of Mexico, 2012.), and a Master in Metabolism and Nutrition (University of Barcelona, 2016).

After her master's degree, she returned to Mexico and began an internship at the National Oncology Center ISSEMy in 2017, where she worked on research protocols on nutrition and cervical cancer. She later worked as a teacher in the nutrition program at the Universidad del Valle de México, Estado de Mexico. She also worked as a research assistant and teacher at Universidad Mexiquense del Bicentenario -Mexico from 2017 to 2019. There she worked on a study on nutrition and sarcopenia in older adults.

During her master's degree in Barcelona in 2016, she completed an internship in the Cancer Research Department of Catalan Institute of Oncology (ICO). Her research topic focused on polyphenols and thyroid cancer. In October 2019 she started her PhD program at the University of Barcelona and joined in the research program Cancer Epidemiology (PREC) of Catalan Institute of Oncology (ICO). She is involved in epidemiological studies related to the consumption of polyphenols, weight changes and cardiometabolic diseases.

Since October 2019, she has been working on the associations between the intake of total and subclasses of dietary polyphenol and weight changes in the study EPIC -PANACEA study, in which the main objective of this cohort is to investigate the determinants of obesity and weight change in Europe. At paralel, she will work with a Mexican’s Teachers cohort to investigate the associations between polyphenol intake and cardiometabolic diseases.