Carlota Castro-Espin holds a degree in Human Nutrition and Dietetics (Ramon Llull University, 2013) and a MSc in Nutrition and Metabolism (University of Barcelona, 2015). Before finishing her MSc, she joined the Nutrition and Cancer Unit (UNAC), within the Cancer Epidemiology Research Program (PREC) at the Catalan Institute of Oncology with the aim of outpursuing her PhD.

Since 2014 she has been part of the technical and coordinator team behind the randomized multicentric clinical trial called PREDICOP (Prevention of Breast Cancer Recurrence Through Weight Control, Diet, and Physical Activity Intervention). She was initially one of the study nutritionists conducting dietary assessments, anthropometric measurements, calculating diets, and teaching nutrition education to study participants (breast cancer survivors).

Looking to deepen her epidemiological and statistical experience, she moved to Oxford in May 2019 to do a 7-month research placement as part of her doctoral studies, at the Cancer Epidemiology Unit within the Nuffield Department of Population Health at University of Oxford. Over this period abroad, Carlota worked on prebiotics intake and breast and colon cancer risk in the EPIC-Oxford cohort.

In November 2019 she won a predoctoral grant, which gave her the opportunity to continue her doctoral studies. Back at the UNAC, at the Catalan Institute of Oncology, in January 2020 Carlota started working on a new project within the European Prospective Investigation into Cancer and Nutrition (EPIC) study, about the inflammatory potential of diet and the risk of breast cancer. Along these lines, her doctoral thesis is focused on dietary patterns, physical activity and incidence and prognosis of breast cancer using observational (EPIC study) and experimental (PREDICOP study) data.