Diabetes, a metabolic disorder caused by the pancreas’ inability to regulate the body’s insulin levels, affects 422 million people worldwide. Type 1, type 2, and gestational diabetes are the most prevalent types. Type 1, formerly called juvenile diabetes, presents itself in childhood and is genetic; type 2 has its onset during adulthood; and gestational diabetes develops only during pregnancy. Symptoms include extreme thirst and hunger, frequent urination, blurred vision, headaches, and fatigue. Treatment regimens include a healthy diet, regular exercise, blood pressure control, limited or no sugar intake, foot care, and insulin ingestion. Diabetes is a very serious illness that can cause serious health complications such as blindness, kidney disease, foot ulcers, heart disease, and stroke.