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Eating for High Blood Pressure

The DASH approach, built into every plate.

A high reading at the doctor's office has a way of following you home. The reassuring part is how much of it answers to what you eat. Blood pressure responds strongly to how you eat. The best-studied pattern is DASH, which is rich in potassium, magnesium, and fiber from vegetables, fruit, and lean proteins, with sodium kept in check. Food really can move the numbers.

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How it works

We load up on potassium-rich produce and choose lean proteins and lower-fat dairy. We lean on whole foods instead of processed ones, since that's where most hidden sodium comes from, and we keep added salt moderate.

✓ What you'll eat

  • Vegetables and fruit, for potassium
  • Lean proteins and fish
  • Low-fat dairy
  • Beans and lentils
  • Nuts and seeds
  • Whole grains

✕ What you'll limit

  • High-sodium processed and restaurant foods
  • Cured and deli meats
  • Salty snacks
  • Heavy added salt
  • Excess alcohol

Who it's a good fit for

People with high blood pressure, or numbers trending that way, who want a proven, food-first approach. (It's the same pattern as our DASH plan.)

What the research shows

Blood pressure is one of the clearest examples of food acting like medicine. DASH wasn't someone's theory. Researchers built it in controlled trials specifically to bring blood pressure down, and it delivered. Eating this way can lower the top number by as much as 11 points or so in people who start out with high blood pressure, which is in the range of what a single medication does. Trimming sodium on top of that pulls it down further, by roughly another 2 to 7 points as you move from a typical intake toward the lower end. You don't have to hit a perfect number to benefit. Every step in the right direction counts.

And the reason it works isn't only cutting salt. It's the whole pattern. The potassium, magnesium, and calcium packed into all that produce, dairy, and beans actively help your blood vessels relax and your body shed excess sodium, so the food is working on two fronts at once. Losing a little extra weight and easing off alcohol nudge the numbers down as well. Stack all of it together and the effect is real, which is why this is a first-line recommendation before, and often alongside, medication.

What to keep in mind

One important exception to all that potassium: it's a gift for most people and a hazard for a few. If you have kidney disease, or you take a blood-pressure medication that raises potassium, such as an ACE inhibitor, an ARB, or a potassium-sparing diuretic, loading up on potassium-rich foods can push your levels too high. If that's you, tell us so we can keep potassium moderate, and check with your doctor about where your levels should sit. Otherwise, the main thing is to keep taking any medication you've been prescribed and keep monitoring with your provider. As the food brings your pressure down, your doctor may be able to adjust your doses, but that's a decision to make together, not on your own.

A dietitian's note

This mirrors the DASH pattern for blood pressure, with potassium-rich produce and lower sodium. Keep taking any prescribed medication and keep monitoring with your provider. Diet works alongside blood-pressure treatment. It doesn't replace it.

Common questions

Is it only about cutting salt?
No. Potassium from produce and the overall pattern matter as much as sodium does. And most of the hidden salt is in processed and restaurant food, not the salt shaker.
How low should sodium go?
Most people benefit somewhere around 1,500–2,300 mg a day. We keep it moderate and flag the high-sodium items so you can decide.
How is this different from the DASH plan?
It isn't, really. Pick DASH as your diet or High Blood Pressure as your condition, and we build it the same way.
Are potassium salt substitutes worth switching to?
For most people, yes. The 2025 AHA/ACC blood pressure guideline backs potassium-based salt substitutes, because swapping one in for regular salt cuts sodium and adds potassium in a single move. They pay off most if you cook and season at home, since that is the salt you actually control, and the rest is already hiding in processed and restaurant food. The exception is the one flagged above: if you have kidney disease or take an ACE inhibitor, an ARB, or a potassium-sparing diuretic, ask your doctor before you use one, because your potassium can climb too high.

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