Lemon grass, rosemary and verbena have pharmacological effects of eliminating edema and fat, but they have no effect on stovepipe or weight loss. For some people, they can also cause mild diarrhea, damage the stomach or increase the frequency of going to the toilet, which may seriously lead to illness.

There is no scientific way to lose weight by drinking a kind of tea or eating a kind of food. Simply dieting or low-calorie diet, the body will lose most of the water and nutrients such as protein, instead of the excess fat that it wants to get rid of most, and its weight will rebound even higher.

Nowadays, herbal tea is highly respected in health care. It's okay to drink occasionally, but it's best not to drink a lot for a long time. There are individual differences in human body, such as deficiency, excess, cold and heat, allergies and so on. Therefore, what flowers to choose and how much to use for making tea should be based on your own physique or under the guidance of a nutritionist.