The best dietary approach for weight maintenance is a balanced, whole-food diet that emphasizes variety and moderation. Incorporating a mix of fruits, vegetables, whole grains, lean proteins, and healthy fats helps achieve satiety and provides essential nutrients. Additionally, monitoring portion sizes and meal timing can prevent excess calorie intake. Sustainable lifestyle changes and mindfulness around eating behaviors are crucial for long-term success, alongside regular physical activity that complements dietary choices and supports metabolic health.