The Claim
Ingestion of aqueous sodium solutions (0.7% or 0.9% NaCl) leads to an increase in plasma volume in resting, euhydrated young men, with plasma expansion detectable within 60 minutes and sustained over time, whereas plain water does not produce a similar effect due to increased urine output and reduced plasma osmolality.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Drinking salt water (with a little salt) can boost blood volume in healthy young guys at rest, and the effect starts within an hour and lasts. Plain water doesn’t do this because it makes you pee more and dilutes your blood.
See the scientific wording
Ingestion of aqueous sodium solutions (0.7% or 0.9% NaCl) increases plasma volume in resting, euhydrated young men, with expansion detectable by 60 minutes and sustained thereafter, while plain water does not produce this effect due to increased urine output and reduced plasma osmolality.
What the research says
1 studyThe study found that drinking salt water increases blood volume and keeps it up, while plain water doesn’t, because the body quickly gets rid of the extra water through urine.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.