Final answer:
The most common treatment for type 1 diabetes is daily injections of insulin. Insulin injections are necessary for managing blood glucose levels and are critical for survival in individuals with type 1 diabetes.
Step-by-step explanation:
The most common, essential treatment for an individual with type 1 diabetes is daily injections of insulin. Type 1 diabetes is a chronic autoimmune disorder in which the immune system attacks the insulin-secreting beta cells of the pancreas, resulting in a lack of insulin production. Insulin injections are critical for managing blood glucose levels and are necessary for survival in individuals with type 1 diabetes. Without insulin, blood glucose levels can rise to harmfully high levels.