The basic functions of lotus leaf tea are clearing away heat and promoting diuresis, stopping bleeding and removing blood stasis, slimming and reducing weight, relaxing bowels and diuresis, strengthening the spleen and protecting the liver, and nourishing the heart in Yiyang, while cassia seed has the functions of moistening the intestines and relaxing bowels, clearing the liver and improving eyesight, tonifying the kidney and strengthening the spleen, and slimming and reducing weight. Both tastes of herbal tea are bitter. Hawthorn helps to reduce fat, soften blood vessels and offset the bitterness of the first two. The first three are mainly clearing heat, while Ophiopogon japonicus is mainly nourishing yin and moistening lung. We can soak in water to lose weight together.