In February 2019 researchers from Iran published their review of the medical scientific literature to assess the frequency of anxiety symptoms in obese/overweight individuals. A total of 25 studies were included in the review. Results showed that anxiety appeared to occur more frequently in overweight and obese individuals than those with a normal weight. However it was noted that there was a degree of bias in the articles included in the review.
Amiri S, Behnezhad S. Obesity and anxiety symptoms: a systematic review and meta-analysis. Neuropsychiatr. 2019 Feb 18. [Epub ahead of print]