Just ordered some methionine to see if it will help with my depression and foggy head. I've had these symptoms since having my amalgams out in May. The funny thing is I always have a strict no gluten, dairy and sugar diet but recently went on holiday and ate and drank everything I wanted. How did I feel? Absolutely fantastic! No foggy head. No depression and loads of energy. Got back home and within 4 or 5 days I was back to the old symptoms. I really don't get it.