Patients with high blood pressure can take folic acid for a long time, folic acid can significantly reduce homocysteine, and hyperhomocysteinemia is one of the risk factors for hypertension, but also an independent risk factor for serious cardiovascular and cerebral vascular diseases, because almost more than 50% of the people with primary hypertension have elevated homocysteine, and such patients are also called H-type hypertension, so long-term consumption of folic acid can effectively reduce homocysteine in the blood, thereby reducing hypertension and controlling hypertension combined with cardiovascular and cerebral vascular disease risk factors. Therefore, long-term consumption of folic acid can effectively reduce homocysteine in the blood, thus reducing hypertension and controlling the risk factors of hypertension combined with cardiovascular and cerebrovascular diseases. However, folic acid does not need to be taken in large quantities, small doses of folic acid tablets taken orally over a long period of time can reduce blood pressure.