For fat loss, both outdoor walking and treadmill walking can be effective, and experts say consistency matters more than where you walk. Outdoor walking may burn slightly more calories because of wind resistance, uneven surfaces and changing terrain, while a treadmill allows precise control over speed, incline and workout duration. However, intensity is more important than location. Brisk walking, incline walking and longer sessions can increase calorie expenditure compared with a slow pace. Experts recommend combining regular walking with a balanced diet, adequate sleep and strength training for sustainable weight management. For many adults, brisk walking for 30–45 minutes on most days can be a practical starting point, making the best choice the one you can consistently maintain.
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