Final answer:
The least effective way to treat diabetes in older adults is not addressing it at all. Proper management usually involves lifestyle adjustments like regular exercise, weight loss, and a healthy diet, and may also include medications or insulin.
Step-by-step explanation:
The least effective way to treat diabetes in older adults is to ignore the condition and make no changes to lifestyle or diet. As aging affects glucose metabolism, leading to an increased risk of hyperglycemia, it is crucial for older adults to actively manage their diabetes. This typically includes regular physical activity, moderate weight loss, and a healthy diet. In some cases, especially if lifestyle changes alone are insufficient, medications or insulin injections may be required to control blood glucose levels. Ignoring diabetes can lead to serious health complications, making proactive management essential.