What part does diet play in an illness?

A healthy diet may help you avoid those sicknesses which are related to an unbalanced diet or unhealthy foods. They include: high cholesterol, anemia, beri beri, pellagra, scurvy, rickets, Diabetes, obesity, hypertension, osteoporosis, weakness, heart and artery disease, goiter, night blindness, high blood pressure, immune deficiency, liver disease, atherosclerosis, constipation, cognitive impairment, and hyperactivity. Among other problems.