# A Doctor and Dietitian Share the Best Nuts to Eat to Lower Blood Pressure
Nuts deliver nutrients that actively lower blood pressure through multiple mechanisms. Cardiologist Dr. James Ehrlich and registered dietitian nutritionist Sarah Pflugelder explain which nuts work best and why.
Almonds top the list. They contain magnesium and potassium, minerals that relax blood vessel walls and reduce tension in the cardiovascular system. A study published in the American Journal of Clinical Nutrition found that people who ate almonds daily showed measurable drops in systolic blood pressure within weeks.
Walnuts rank second. Their omega-3 fatty acids improve endothelial function, the layer of cells lining blood vessels. This improvement enhances blood flow and reduces arterial stiffness. Research from the University of Pennsylvania showed that regular walnut consumption lowered blood pressure in participants with metabolic syndrome.
Pistachios offer another strong option. They provide arginine, an amino acid that promotes nitric oxide production. Nitric oxide relaxes blood vessels and improves circulation. Pflugelder notes that a handful of pistachios daily can support blood pressure management without adding excessive sodium if you choose unsalted varieties.
Cashews contain copper and magnesium, supporting proper mineral balance. Pumpkin seeds, while technically not tree nuts, deliver similar benefits through their potassium content.
The mechanism behind nuts' effectiveness works this way: their potassium content counteracts sodium's blood-pressure-raising effects. Magnesium reduces inflammation in arterial walls. Healthy fats improve cholesterol profiles and vessel flexibility.
Portion control matters. Dr. Ehrlich recommends eating one ounce daily, roughly a small handful. This provides benefits without excess calories. Raw or dry-roasted nuts work best. Honey-ro