American Diabetes Alert Day is observed annually on the fourth Tuesday of March, with this year's observance falling on March 24. The day is aimed at raising awareness about the risks and symptoms associated with diabetes among the American public and is sponsored by the American Diabetes Association. Diabetes is characterized by high blood glucose levels due to a deficiency in insulin, which is necessary for glucose to enter cells for energy. The most common types of diabetes include Type 1, Type 2, and gestational diabetes. The observance encourages individuals to learn about diabetes and its potential health complications, as well as to promote healthy lifestyle choices to mitigate the risks associated with the disease.