According to the research of Diabetes mellitus: The epidemic of the century, there are statistically significant proof that diabetes is a complex disease that affects millions of people worldwide. Those who have diabetes are unable to process sugars effectively, which can make it difficult to maintain healthy blood sugar levels. However, good blood sugar control helps prevent and delay the onset of complications, including heart disease, stroke, and damage to the nerves and kidneys. Several studies suggest that the low-GI diet is effective at reducing blood sugar levels in people with diabetes. The low-GI diet may also improve pregnancy probability in women with Gestational Diabetes Mellitus (GDM), a form of diabetes that occurs during pregnancy.