What improvement in HbA1C can be expected from a plant-based diet?

A plant-based diet has been shown to be effective in improving glycemic control and lowering HbA1C levels, particularly for individuals with type 2 diabetes or prediabetes. Research suggests that adopting a plant-based diet can lead to significant improvements in HbA1C, with many studies reporting reductions in this marker of blood glucose levels.

The reduction of 1.23% in HbA1C, the correct choice, reflects a substantial improvement that is realistic based on various clinical studies and dietary interventions focused on whole plant foods. This level of change indicates effective management of blood glucose levels, which is a primary goal in treating and preventing complications related to diabetes.

Improvements of this magnitude can occur due to several factors associated with a plant-based diet, including increased fiber intake, lower calorie density, reduced saturated fat intake, and enhanced nutrient composition from whole foods, which collectively improve insulin sensitivity and contribute to better metabolic health. Such changes can lead to more stable blood glucose levels, ultimately resulting in a meaningful decrease in HbA1C percentages.