Introduction:

The COVID-19 outbreak has led to significant changes in dietary habits due to confinement and social distancing measures. Objective. To assess the dietary habits associated with the COVID-19 health emergency among Chilean adults during the year 2020.

Materials and methods:

An observational, descriptive, and cross- sectional study was conducted on Chilean adults selected through non-probabilistic convenience sampling. A survey validated by expert judgment was used, including questions on sociodemographic characteristics, usual food intake, and perceived changes in dietary habits during confinement.

Results:

A total of 4,346 Chilean adults participated in the study, with an average age of 35.8 ± 13.9 years, predominantly urban residents (94.3%), and female (75.1%). An increase in household food supplies during confinement was observed. Most participants reported maintaining or increasing their consumption of vegetables, fruits, dairy, fish, and legumes. However, the intake of healthy foods did not meet the established nutritional recommendations. Additionally, there was an increase in the consumption of sweets.

Conclusions:

This study reveals the effects of COVID-19 confinement on the dietary habits of Chilean adults, where a considerable percentage of the population did not comply with the recommended balanced diet according to Chilean dietary guidelines. The increased consumption of some unhealthy foods may have implications for health and nutritional status. It is essential to promote balanced eating during crisis situations like this pandemic.