Does Poor Diet Cause Disease and Disorder? Can it negatively affect addiction rehab? Medical experts have traced the origin of many chronic disorders, including disease, sickness, and addiction, to unhealthy changes in eating and diet patterns. Every cell in the human body needs energy which comes from nutrients from food in order to function and grow, so it makes complete sense that the body and brain would suffer deleterious effects from malnutrition. For example, research has shown that for: Cardiovascular disease – Eating more heart healthy foods like fruits and vegetables and much less inflammatory foods like trans fats, sugar, and white breads can decrease the likelihood of heart disease. […]