Drinking this special mineral water makes your body produce less of a hormone called aldosterone, which helps control blood pressure — and this effect is stronger than with regular mineral water.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
probability
Can suggest probability/likelihood
Assessment Explanation
RCT design supports causal inference, but blinding is unknown. The phrase 'greater reduction' is appropriately probabilistic and matches the data. No overstatement of mechanism.
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)
Blood Pressure Stability and Plasma Aldosterone Reduction: The Effects of a Sodium and Bicarbonate-Rich Water - A Randomized Controlled Intervention Study
People who drank mineral water with lots of sodium and bicarbonate for a month had a bigger drop in a stress hormone called aldosterone than those who drank water with less sodium and bicarbonate — so yes, the claim is right.