Diet and nutrition are important for your overall well-being and health. Poor diets can lead to potentially fatal chronic conditions including cardiovascular disease, diabetes, high cholesterol, mental health problems, liver disease, cancer, and obesity. Ensuring you stay at an appropriate weight will prevent future complications caused by these diseases. Additionally, eating healthy can help you live longer, boost immunity, strengthen bones, lower risks associated with unhealthy diets, support muscles, and keep your organs healthy.