Foods rich in potassium have a hypotensive effect, because potassium has a vasodilating and sodium-draining effect. Potassium-rich food vegetables are cabbage, eggplant and green pepper, the most obvious vegetable to lower blood pressure is celery, if you eat in order to lower blood pressure, try not to add seasoning, you can eat with boiling water or juice. For example, celery each oral intake of celery juice 60 ml, to a month as an observation cycle. Fruits rich in potassium are apples, bananas, kiwis, etc. As the fruit is cold, to prevent damage to the spleen and stomach, so eat with hot water to warm it up, so that long-term eating will not get stomach cold. Some foods can not directly lower blood pressure, but can indirectly lower blood pressure through diuretic sodium discharge, such as winter melon can be boiled soup or juice oral. In short, the effect of food to lower blood pressure is weak and requires long-term persistence to produce results.