Key Takeaways

Eating 1.5 grapefruits a day may lower blood pressure by about 2 to 3 mmHg.

Grapefruit can interact with some medications, leading to potential drug toxicity.

Several foods may help reduce blood pressure, and grapefruit is a great addition to your diet. Research suggests that eating about 1.5 grapefruits a day may modestly lower blood pressure, though more studies are needed.

What the Research Says

“We know that a diet high in potassium can improve blood pressure, not only grapefruit specifically, and you should aim for greater than 4,000 milligrams of potassium per day,” said Julia Zumpano, RD , a dietitian specializing in preventive cardiology at the Cleveland Clinic.

One grapefruit provides around 415 milligrams of potassium.

Zumpano said potassium can help ma

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