There is no miracle drink that “burns fat” instantly in the morning. The best choices are those that support appetite control and do not disrupt your plan: water, unsweetened tea/coffee, and simple drinks that fit a protein-based breakfast. Caffeine can improve performance and slightly increase energy expenditure in some people, but if it harms sleep, fat loss becomes harder. Lemon water or apple cider vinegar may work as rituals, but they do not dramatically increase fat loss on their own. The strongest morning strategy is hydration, light movement, and managing total daily calories.