Here is a slideshow on webmd that shows food that are good in fighting Cancer. There list of food comes again and again for healthy life. So, better stick to those if you can and avoid trouble. Many foods listed there will be found in mood enhancing list as well. They also suggest that nutrients are good but in form of natural resource it is better. You know that nutrients in the form of pill can cause liver to overwork when you do not need many things in the pill! But the same is not the case of natural resources. Body can easily leave natural nutrients when it does not need.