States of depression do not just happen. There is a clear co-relation between nutritional deficiencies and mental health. Depression is actually one of the early signs of nutritional depletion. Diseases begin when the body begins to get imbalanced. The imbalances can be identified and corrected with proper food, herbs and vitamins. Besides oxygen, clean water, we need proper food that nourishes our body and brains. What does the author want to convey?