The World Health Organization estimates that diabetes now affects more than 415 million people worldwide, and expects that number to grow to 640 million in the next 20 years. The group estimated that 1 in 20 Irish people have type 2 diabetes which may be underestimated and undiagnosed. Diabetes is one of the most costly diseases, accounting for around 12% of global health care expenditure. Failing to tackle the prevention of the disease challenges the healthcare system financially and has detrimental effects on people not diagnosed early. Prevention and early diagnosis can help reduce risks of of other issues such as vascular disease, heart disease, and blindness. Currently, there is no cure for diabetes. Prevention is the best medicine, using pharmaceutical supplements, exercise, and nutrition.