Our bodies evolved to handle less than a teaspoon of salt per day, but most people today eat 10 times that much, which may be too much for our systems.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design cannot support claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The claim is presented as an evolutionary hypothesis, not a measured outcome, and the language ('adapted to') is appropriately cautious. No causal or statistical claim is made.
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)
Links between dietary salt intake, renal salt handling, blood pressure, and cardiovascular diseases.
The study says our bodies evolved to handle very little salt—less than a teaspoon a day—but now we eat way more, which harms our hearts and blood pressure. So yes, our bodies aren’t built for today’s salty diets.