In a Tongrentang drugstore in the North Fourth Ring Road, the staff said that lotus leaf ash had never been sold in the store, and it had never been heard that lotus leaf ash had the effect of losing weight. The description of lotus leaf ash in China Pharmacopoeia is "clearing away heat and relieving summer heat, cooling blood and stopping bleeding", but it is not clear that lotus leaf ash can lose weight.

It is understood that some researchers have tested the effect of alkaloids extracted from lotus leaves on the fat content of obese mice by gavage. After a month's observation, the alkaloids in lotus leaves can really promote the metabolism and decomposition of fat in mice. Therefore, it makes sense to often use raw lotus leaves in diet pills.

But if the lotus leaves burn to ashes, will they have the same weight loss effect? At present, no researchers have carried out animal experiments on this, but in a study, it was found that the alkaloid components in lotus leaf ash processed according to the ancient method almost disappeared, while the hyperoside components that helped to reduce blood fat would be greatly reduced. It can be seen that the weight loss effect of lotus leaf ash will be much worse than that of raw lotus leaf.