The bad side of lotus seed includes eating too much hurts the spleen and stomach, and may cause bloating and constipation. Lotus seed belongs to the cold ingredients, eat too much hurt the spleen and stomach, will affect digestion, absorption, especially the body cold people, must be taken in moderation. Lotus seed has astringent and astringent effect, constipated patients eat aggravate the situation of dry stools, long-term constipation of the crowd also try to eat less lotus seed. Lotus seed is a common Chinese medicine, medicinal value is very high, there is a solid sperm to stop belt, tonifying the spleen to stop diarrhea, nourish the heart and tranquilize the role of the spirit. Lotus seed is flat in nature, sweet and astringent in flavor, and astringent means it has astringent and solidifying effect, so lotus seed has a therapeutic effect on spermatorrhea and leucorrhea caused by spleen and kidney deficiency. Lotus heart has alkaline components and alkaloids have cardiotonic effects, so lotus heart has the effect of strengthening the heart and tranquilizing the mind.