Bazhen cake mainly nourishes the spleen and stomach and eliminates moisture in the body. Bazhen cake is prepared from Radix Codonopsis (removing reed), Poria, Atractylodis Rhizoma, Lentils, Semen Nelumbinis, Semen Coicis, Rhizoma Dioscoreae and Semen Euryales. Poria cocos is one of the main components of Sijunzi decoction, which can strengthen the spleen and tonify the middle energizer, calm the heart and soothe the nerves, and promote diuresis and eliminate dampness. Euryale ferox can strengthen the spleen and stop diarrhea, nourish the heart and kidney, tonify the middle energizer, strengthen the body, regulate the stomach and qi, and stimulate appetite. Coix lachryma-jobi can strengthen the spleen, stimulate appetite, tonify the middle energizer and remove dampness. Yam can strengthen spleen and stomach, benefit lung and kidney, relieve fatigue, dispel wind and remove dampness. Lentils can regulate qi, tonify kidney and strengthen stomach. Lotus seeds can strengthen the spleen, nourish the heart, invigorate qi, strengthen the will, strengthen the bones and muscles, replenish deficiency and stomach. Malt can help digestion, neutralize and eliminate accumulation and bloating. Lotus root powder can nourish the stomach and yin, remove blood stasis and promote tissue regeneration, promote digestion, strengthen the spleen and cool blood, relieve vexation and vomiting, and quench thirst and diarrhea.