Long-term high potassium intake in mice causes certain kidney tubules to shrink and others to grow larger.

Long-term high potassium intake in mice leads to higher levels of a hormone called aldosterone in both blood and urine.

Long-term high potassium intake in mice alters kidney proteins linked to kidney damage pathways.

When mice eat a lot of potassium for three weeks, their blood pressure goes up mostly at night, no matter how much salt they eat or what form of potassium they consume.