@question, it depends on the severity of the depression. It does not cure a very low depression, but it can help.
Depression can be a symptom of something gone wrong in your body, it is definitely a chemical imbalance in the organism.
When you are feeling tired, with low energy you can develop depression. You need to check your diet and see what you miss and add it. Add omega-3 to your diet, vitamins and don`t forget to eat raw vegetables if possible and make sports, it is very important for a healthy body and mind.