Which nonpharmacological lifestyle change is crucial for reducing microvascular changes in a post-MI patient?

In the context of a post-myocardial infarction (MI) patient, effective glucose control is pivotal for reducing microvascular changes. After a heart attack, managing blood sugar levels becomes essential, especially because poor glucose control can lead to complications such as diabetic retinopathy and nephropathy, which are significant microvascular issues. Elevated glucose levels can contribute to endothelial dysfunction and increase the risk of microvascular damage, thus affecting small blood vessels throughout the body.

By maintaining tight glucose control, patients can minimize the risk of these complications, significantly improving their long-term cardiovascular health and quality of life. This approach also supports broader cardiovascular outcomes, as good glycemic control contributes to overall well-being and helps prevent further cardiovascular events.

In contrast, the other options do not align with best practices for post-MI management. Increasing nicotine use would be detrimental to cardiovascular health, while increasing cholesterol consumption can adversely affect lipid profiles. Maintaining weight is important, but without addressing glucose control specifically, the microvascular risks remain unmitigated. Thus, focusing on glucose management is crucial in this scenario.