Sodium and Potassium Intake and Mortality Among US Adults
Quanhe Yang · Archives of Internal Medicine (2011)
TL;DR
Adults with higher sodium intake or a higher sodium-to-potassium ratio had a greater risk of death from any cause or heart disease.
What they did
Researchers studied 12,267 U.S. adults from a national health survey. They tracked deaths for an average of 14.8 years. The team looked at sodium and potassium intake and the ratio between them.
What they found
Each 1000 mg per day increase in sodium was linked to a hazard ratio of 1.20 for death from any cause. Each 1000 mg per day increase in potassium was linked to a hazard ratio of 0.80 for death. Compared to the lowest group, people with the highest sodium-to-potassium ratio had a hazard ratio of 1.46 for all-cause death and 2.15 for death from ischemic heart disease.
Why it matters
Studies suggest that eating less sodium and more potassium may be linked to a lower risk of early death. Foods like fruits and vegetables tend to be high in potassium, while many processed foods are high in sodium. This link may help guide everyday food choices.
Limits
The abstract does not discuss study limitations. This is general education, not medical advice.
Jargon explained
- hazard ratio
- A number that shows how much more or less likely an event is in one group compared to another.
- confidence interval
- A range of values that likely includes the true effect.
- ischemic heart disease
- A type of heart disease caused by narrowed arteries that reduce blood flow to the heart.
Read the original: https://doi.org/10.1001/archinternmed.2011.257
Full citation
Quanhe Yang (2011). Sodium and Potassium Intake and Mortality Among US Adults. Archives of Internal Medicine. DOI: 10.1001/archinternmed.2011.257
Open access (bronze): https://doi.org/10.1001/archinternmed.2011.257
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Educational information only, not medical or dietary advice. Consult a qualified health professional for personal nutrition guidance.