Introduction: Obesity is considered a growing public health problem by the Brazilian Ministry of 

Health and a global epidemic by the World Health Organization (WHO). In 2020, the Centers for 

Disease Control and Prevention (CDC) estimated the prevalence of adult obesity at 31.9% in the USA. 

The USA is one of the main destinations for Brazilian immigrants in search of better living 

conditions, and Massachusetts is one of the states with the highest presence of Brazilians.

Changes in lifestyle and eating habits are often associated with in- creases in overweight and obesity 

in immigrants in the USA, especially Hispanics, an official classification that does not, however, 

include Brazilians. The aim of this study was to de- scribe the temporal trend of overweight and 

obesity in Brazilian immigrants assisted by the Cambridge Health Alliance (CHA) healthcare 

network in Massachusetts. Methods: This was an ecological time series study of 128,206 records of 

Brazilians aged between 18 and 60 years based on hospital data from 2009 to 2020. Results: Mean age was 38.9 (SD = 10.6), and 61% of the sample were women. The prevalence of over- weight and obesity was 38.4% and 25.4%, respectively. Obesity exhibited an increasing trend, while eutrophy and over- weight decreased during the study period. Conclusion: As little is known about the health of Brazilian immigrants in the USA, this study contributes to the literature on the subject. The observed increasing trends agree with the worldwide increase in 

obesity and indicate the need for future research exploring individual factors associated with 

immigrant acculturation..