<human>:  What is the best combination of physical activity and nutrition for weight loss?
<bot>: The best combination of physical activity and nutrition for weight loss is to engage in regular aerobic exercise for at least 30 minutes each day, as well as eat a nutritious, low-calorie diet that is balanced in terms of proteins, complex carbohydrates, healthy fats, and essential vitamins and nutrients. Incorporating strength training and other exercises into the weekly routine is also beneficial for long-term results.