Patients with low diastolic blood pressure need to pay attention to a healthy diet and ensure adequate nutrition. However, since there are many causes of low diastolic blood pressure, such as postural hypotension, neurogenic hypotension, etc., the effect of dietary adjustments alone is relatively limited, and medication is necessary. 1. Reasonable diet to ensure nutrition: consume more high-quality proteins, and advise patients to eat fish, milk, soy products and so on. Appropriate to eat more salt, because salt can rise high blood pressure to a certain extent. Drinking water to a certain extent helps to increase the blood volume in the patient’s body, which plays a role in increasing blood pressure. 2. Medication: If low diastolic blood pressure occurs, symptomatic medication should be taken under the guidance of a doctor, but there is no specific medication that can treat low diastolic blood pressure alone. Under certain circumstances, doctors may use medications to treat specific types of low blood pressure, such as fludrocortisone and midodrine. If a patient develops low diastolic blood pressure after taking antihypertensive medications such as hydrochlorothiazide for hypertension, he or she should adjust his or her antihypertensive medications under the guidance of a doctor. Note: Patients who have low diastolic blood pressure should take medication or adjust their diet under the guidance of a doctor, and actively explore the cause of the disease to avoid worsening symptoms.