Dr. Finnerty is a psychologist who writes nexus letters for VA disability claims. This includes writing nexus letters for issues secondary to psychological issues with obesity as an intermediary when applicable. For example, sleep apnea secondary to PTSD, depression, anxiety, etc. (including obesity from those psychological conditions) as well as cases related to hypertension, GERD, diabetes, etc.
Dr. Finnerty provided a blog post with some sample language and research he tends to use related to obesity:
https://nexusletters.com/2024/07/17/obesity-as-an-intermediary-in-va-disability-claims/