Weight training can aid in fat loss by boosting metabolism. Increased muscle mass contributes to a higher resting metabolic rate, allowing the body to burn more calories throughout the day. Additionally, weight training leads to post-exercise oxygen consumption, where the body continues to burn calories after the workout is completed. Resistance training also helps maintain muscle while dieting, which is crucial for ensuring weight loss primarily comes from fat rather than muscle. Overall, combining weight training with a balanced diet creates more effective fat loss outcomes and improved body composition.