In March 2019 researchers from the USA published the results of their study to assess the effect of regular avocado consumption on changes in weight and BMI. A total of 55,407 individuals, average age 56 years, were involved in the study. Information on avocado intake (standard serving size 32 g/day) was collected via a food frequency questionnaire. Self-reported height and weight were collected at the start of the study, with follow-up weight being collected via follow-up questionnaires between 4-11 years later. Results showed that normal weight individuals who consumed avocados gained significantly less weight than non-consumers. In addition the risk of becoming overweight/obese was higher for low avocado consumers than high consumers.
Heskey C et al. Avocado Intake, and Longitudinal Weight and Body Mass Index Changes in an Adult Cohort. Nutrients. 2019 Mar 23;11(3). pii: E691