Do only potassium ions pass through the selectivity filter of a potassium channel, or are there water molecules between the ions? This question has been a source of controversy for years. Researchers ...

Potassium is essential for kidney function. Too much or too little potassium can affect this function and lead to complications. Potassium plays a key role in a number of bodily processes, including ...

A low-potassium diet may reduce the burden on the kidneys and keep potassium levels in check. Low-potassium foods can help a person lower their potassium levels. Examples include fruits, vegetables, ...