Final answer:
Cardiovascular disease is the most common complication associated with diabetes.
Step-by-step explanation:
The most common complication associated with diabetes is cardiovascular disease.
When diabetes is not well controlled, it can lead to damage to small blood vessels, which increases the risk of coronary artery disease and stroke. Additionally, poorly controlled diabetes can damage blood vessels in the kidneys, leading to chronic kidney disease. While peripheral neuropathy and systemic inflammation are potential complications of diabetes, cardiovascular disease is the most common.