What lifestyle change is most effective for managing prediabetes?

Achieving and maintaining a healthy weight is the most effective lifestyle change for managing prediabetes. When individuals are overweight or obese, they are at a higher risk of developing type 2 diabetes because excess body fat can lead to insulin resistance. By focusing on weight management, individuals can improve their body's insulin sensitivity, which helps to regulate blood glucose levels more effectively.

Sustaining a healthy weight often involves a combination of balanced nutrition, which includes appropriate carbohydrate intake, and regular physical activity. These changes help in improving overall metabolic health, decreasing cardiovascular risks, and potentially reversing prediabetes.

Increasing sugar intake would likely worsen the condition by raising blood glucose levels, while avoiding all carbohydrates is not practical or sustainable for most people and can lead to nutrient deficiencies. Exercising only once a week is not sufficiently frequent to provide the benefits necessary to manage prediabetes; regular physical activity is key to weight management and improving metabolic health.