Rumors:

Lotus leaf tea has the effects of reducing blood fat, cholesterol and weight. Lotus leaf alkaloids have the function of reducing blood lipid and are often used to treat obesity in clinic.

Rumors:

It is not reliable for lotus leaf tea to lose weight quickly.

Search for "lotus leaf tea" in Baidu, and there will be many articles and videos about it. In fact, lotus leaf tea is not reliable for losing weight.

First of all, after any substance enters the human body, whether it plays a beneficial physiological function or produces harmful toxic effects, it must reach a certain intake. At present, the scientific research on the weight loss of lotus leaf tea still stays at the level of animal experiments, and there is no rigorous and scientific evidence of human experiments, and there is no report on how much people can lose weight. Therefore, the producers of lotus leaf tea will not say how much to drink every day to lose weight. Obviously, it is impossible to achieve the function without talking about the dosage. Moreover, when making tea, the dissolution of effective components will not be 100%, and the dosage of effective components will be reduced.

Secondly, losing weight is one of the 27 functions of health food in China. Those who claim to be able to lose weight should be labeled with health food, and the instructions should have edible and health care functions. There is no health food approval, that is to say, these products have not been scientifically evaluated, which proves that they have weight loss effect at the recommended dose.

Finally, from the perspective of energy conservation, losing weight means consuming energy in fat, which requires energy consumption to be greater than energy intake. Energy consumption includes basal metabolism, physical activity and food thermal effect. For a relatively stable human body, basal metabolism is basically unchanged. If the diet is relatively fixed and the thermal effect of food is relatively constant, the only thing that can be changed is physical activity. Therefore, increasing energy consumption mainly depends on increasing exercise, while reducing energy intake requires adjusting diet structure. It is unrealistic to rely on drugs to reduce energy intake and increase energy consumption without changing lifestyle.

At the same time, we should know that any method to lose weight quickly, even if it is to strengthen exercise and increase energy consumption, will also cause damage to the body, cause endocrine and metabolic disorders, and also cause an increase in ketoacidosis in the body, which will lead to ketoacidosis in severe cases. Therefore, losing 0.5~ 1Kg a week is the safe weight loss speed. As for lotus leaf tea, because there is no scientific research to determine the dose that can effectively lose weight, there is no safety toxicology evaluation on this dose. We don't even know whether it will do harm to our health if we can lose weight by ingesting it. Therefore, it is suggested that when choosing weight loss products, choose products with health food signs and try not to pursue rapid weight loss.

Rumor expert: He China Agricultural University, Associate Professor, Department of Nutrition and Food Safety.

Appraisal experts: Director and researcher of Risk Communication Department of han hongwei Food Safety Risk Assessment Center.