Garcinia cambogia is popular for weight loss, but scientific evidence showing it specifically reduces belly fat is very weak. While its active ingredient, hydroxycitric acid (HCA), may slightly suppress appetite, actual weight loss is usually minimal and temporary. Common side effects include nausea, headache, dizziness, dry mouth, and digestive issues like diarrhea or stomach cramps. More critically, it has been linked to rare but serious liver damage. Because supplements are not strictly regulated, I recommend focusing on a balanced diet and exercise for safe, effective belly fat loss. Always consult your doctor before starting any new supplement.