If you eat more potassium-rich foods, your blood pressure goes down in a straight-line way—more potassium means lower blood pressure, and this keeps happening all the way up to a pretty high amount, at least for people with high blood pressure.

If you have high blood pressure, eating more potassium might lower it more than it does for someone with normal blood pressure.

If you eat more potassium every day—like from bananas or potatoes—your blood pressure might drop just a tiny bit, but not enough to matter for your health if you don’t already have high blood pressure.

Eating more potassium can lower blood pressure in people who already have high blood pressure, but it doesn’t help people with normal blood pressure — so it’s like a targeted fix just for those who need it.

When people ate more potassium, their blood pressure went down a little—but the amount it dropped varied a lot depending on which study you looked at, so we’re not sure exactly how much potassium helps lower blood pressure.

When people with controlled high blood pressure eat a meal high in potassium, their blood potassium levels go up significantly compared to a low-potassium meal, especially within an hour and two hours after eating.