That sounds good. Make sure you feed him plenty of fruits and veggies so he continues to get his nutrition. Limit carbs to once a day in the morning, and not after 3PM. Don’t serve dinner fast 7PM, either. Cut down on all unhealthy things. Then make sure he exercises an hour a day, running/jogging on the treadmill. He’ll lose weight in no time.You could also talk to his doctor to make sure it;s working.