Spironolactone does not cause weight loss by reducing body fat, and it is not FDA-approved as a weight-loss medication. However, because spironolactone is a diuretic, it helps the body remove excess fluid through urine, which may temporarily lower body weight or reduce swelling.
Spironolactone should only be taken when prescribed by a doctor. It is approved to treat certain types of heart failure, high blood pressure, fluid buildup related to cirrhosis or nephrotic syndrome, and primary hyperaldosteronism.
For healthy, sustainable weight loss, the main approach is generally a balanced diet combined with regular physical activity. Weight-loss medications may be appropriate for some people, but they should be chosen based on individual health needs and used under medical supervision.
If you want to lose weight and need help getting started, consider seeing a registered dietitian or a doctor who specializes in weight management.