You cannot “spot-burn” belly fat. Fat loss happens systemically, and the abdomen typically leans out over time with overall fat reduction. The most effective combo is a calorie deficit, adequate protein, resistance training, and higher daily movement. Cutting sugary drinks, ultra-processed foods, and excess alcohol often improves waistline outcomes. Stress and poor sleep can disrupt appetite regulation and increase late-night eating, indirectly promoting belly fat. So the best belly-fat strategy is not one product—it is nutrition, training, and sleep working together.