Even when people who don’t get high blood pressure from salt eat a lot more salt for 10 days, their blood pressure doesn’t go up—no matter if they’re a man or a woman.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The RCT design with continuous ambulatory BP monitoring across controlled diets provides direct causal evidence of no BP effect in this population.
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)
Sodium Intake and Biological Sex Influence Urinary Endothelin-1 in Salt-Resistant Adults: A Pilot Study.
The study didn’t measure blood pressure, but it looked at how the body handles salt and found no signs that high salt made people’s blood pressure go up—so it supports the idea that salt doesn’t raise blood pressure in these healthy people.