Traditional Chinese medicine believes that "spleen governs the growth of summer" and "summer heat must be humidified", and people with spleen deficiency should adhere to the principle of invigorating qi and nourishing yin, strengthening spleen and nourishing stomach, clearing summer heat and eliminating dampness, adopt a scientific method of diet and choose sweet and delicious food that is easy to digest and not greasy. In summer, lotus seed soup, lotus leaf porridge, mung bean porridge, bean paste porridge, corn paste, etc. are suitable for the food supplement of the elderly. These foods have the functions of quenching thirst, promoting fluid production, clearing away heat and relieving summer heat. For the elderly with hypertension and hyperlipidemia, jellyfish and water chestnuts can also be used in the same amount. After washing, add appropriate amount of rock sugar and cook it into "snow soup drink", which is taken three times a day. If accompanied by indigestion and chronic diarrhea, you can use fresh white lentils100g, 50g of rice, add appropriate amount of water and cook porridge to eat, which will also get the effect of dietotherapy.