Sodium is the PRIMARY extracellular electrolyte. Average intake is 3,400mg/day (US); recommended limit is 2,300mg/day. HOWEVER: the 2014 PURE study (100,000+ people) found the LOWEST cardiovascular risk at 3-6g/day sodium — suggesting the current 2,300mg recommendation may be too low for most people. Athletes lose 500-2,000mg sodium per hour of exercise — replacement is critical (hyponatremia from overhydration without sodium kills more marathon runners than dehydration). Salt tablets: 250-500mg sodium per capsule. --- *Reviewed by the Dose AI Research Team and Clinical Advisory Board* *Last updated: 2026-04-06*
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.