Fat burners have never really delivered. The side effects are numerous, and once you quit taking them, the pounds you shed return. Your body takes a beating from them. Instead, focus on your diet: consume whole foods and cut back on sugar and processed items wherever possible. If you have a lot of weight to drop, consider a GLP. I am elderly and have experimented with nearly every option out there, and no shortcuts or instant solutions exist. It requires patience and work, but the payoff is real.