What is a common outcome of insulin deficiency in diabetes?

Insulin deficiency in diabetes leads to elevated blood glucose levels because insulin is a crucial hormone for regulating glucose uptake into the cells. When there is not enough insulin, glucose remains in the bloodstream instead of being transported into the cells where it can be used for energy. This results in hyperglycemia (high blood sugar), which is a hallmark of diabetes, especially in type 1 diabetes where insulin production is severely impaired.

In contrast, increased physical endurance, excessive weight gain, and improved metabolism are not typical outcomes associated with insulin deficiency. Lack of insulin impairs the body's ability to utilize glucose effectively, which can lead to fatigue rather than increased endurance. Additionally, insulin plays a significant role in fat storage; thus, a deficiency often results in weight loss rather than excessive weight gain, although some individuals may experience weight gain due to compensatory mechanisms in the body. Improved metabolism generally refers to an enhanced ability to process nutrients, which is compromised in the context of insulin deficiency.