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.

In mice, more potassium leads to more aldosterone in a straight-line way, but blood pressure rises sharply only when aldosterone hits a certain level (around 4040 pg/24h), then levels off.

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

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.

In mice eating normal salt, too much potassium (over 1.75% of their diet) makes their blood pressure go up during active hours, especially at high potassium levels like 5%, because of increased activity of certain kidney channels.