Make sure he cuts out most foods with high in purine, which is converted to uric acid. Stay away from food like organ meats, red meats, seafood, alcohol and beer. Those will often increase the chance of you getting gout. Fruits, veggies, nuts, eggs and more are good foods to eat to stop gout in its tracks.
Check this link out here for more details:
Gout is a type of arthritis that causes sudden and severe pain attacks, but the right diet can ease symptoms. We review the best research-backed diets for gout.
www.healthline.com
Also, he should be able to do OMAD as well.