Food is one of the most important factors that affect both our mind and body. Eating happy food can almost instantly alter brain chemistry and uplift the mood of the person making him or her feel good. In fact, indulging in a spread of happy food is one of the best ways to fight depression. Omega 3 fatty acids easily lead the list of happy foods. This compound can be found in tuna, salmon, walnuts, and canola oil.

You can even purchase this in supplement form and take them daily if you want to fight depression or combat mental illnesses such as bipolar disease. Zinc is another happy food that plays a vital role in metabolism and digestion. This also helps fight weakness and fatigue and is found in abundance in wheat germ, pumpkin seeds, whole grain wheat bran and high protein foods. Vitamin B3, water and Vitamin E are other happy foods that you can try the next time you are feeling low.