Not that simple.
On Seroquel, by the time you have met your nutritional needs for vitamins and minerals, even eating whole, raw and organic, you've taken in too many calories because of how much your metabolism has slowed. It also puts a damper on your desire for physical activity. It comes close to the thorazine shuffle. Seroquel is designed to slow the brain and it works very well in that regard without being able to tailor which processes are affected.
BTDT.