Even if you eat a lot more or a lot less salt for a week, your body still pees out about the same amount of potassium — your kidneys handle potassium on their own, not by following how much salt you eat.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
This is a well-controlled RCT with randomization, crossover design, and direct measurement of urinary potassium under controlled conditions, allowing definitive causal language within the studied population and timeframe.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.
Evidence from Studies
Supporting (1)
Dietary sodium intake does not alter renal potassium handling and blood pressure in healthy young males
Even when these men ate a lot more or a lot less salt, their bodies kept peeing out about the same amount of potassium — meaning their kidneys handle potassium on its own, not based on how much salt they eat.