洋葱所含有的前列腺素A是一种较强的血管扩张剂,能够软化血管,降低血液黏稠度,减少人体外周血管和心脏冠状动脉的阻力,增加冠状动脉血流量,具有降低血压和预防血栓形成的作用。医学实验证明,用乙醇在洋葱中提取汁液给人服用,可使血糖量降低。洋葱含有一种抗糖尿病的化合物,类似常用的口服降血糖剂,具有刺激胰岛素合成及释放的作用,同时对人体血管也有 Onion contains prostaglandin A is a strong vasodilator, can soften blood vessels, reduce blood viscosity, reduce the body’s peripheral vascular and cardiac resistance, coronary blood flow, with lower blood pressure and prevent thrombosis Role. Medical experiments show that the use of ethanol in the onion extract juice for human consumption, can reduce blood sugar levels. Onion contains an anti-diabetic compound, similar to the commonly used oral hypoglycemic agents, with stimulating insulin synthesis and release of the role, while the human blood vessels also have