Yes, it does help in burning unwanted and stubborn fats. Mango leaves are rich in Vitamin B. Vitamin B is known to stimulate the liver to flush out all the toxins and extra carbs from the body aiding in weight loss.
Mango leaves once consumed, triggers the production of the leptin hormone. The leptin hormones are the one which plays a major role in fat accumulation in the body. Triggering this hormone may help in burning the fats from the body.
Stress is one of the reasons for weight gain. Drinking soaked mango leaves in water or bathing in it is known to help you relax.