The efficacy and function of white lentil is to strengthen the spleen and stomach, remove dampness and phlegm, and dissipate heat. From the perspective of Chinese medicine dietotherapy, white lentils are sweet, light and flat in nature, and enter the spleen stomach channel. For patients with anorexia, dyspepsia, nausea, vomiting, abdominal pain and bloating caused by weakness of the spleen and stomach, if properly eaten, white lentils have a good effect on strengthening the spleen and stomach. It can also remove dampness and phlegm. For patients with thirst and hematemesis caused by summer dampness, white lentils can also remove dampness and phlegm if eaten properly. It can also relieve the heat. For the thirsty and thirsty patients caused by the heat, white lentils can also relieve the heat.