Salt wars: Potassium-Rich diet may beat Low-Sodium for heart health
NCT ID NCT07221448
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether teaching young adults to eat more potassium is easier and better for their blood vessels than telling them to cut back on salt. Researchers will compare two groups: one gets advice on boosting potassium-rich foods, the other on reducing sodium. They'll track diet changes and heart health markers like blood pressure over six months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- dietary education on potassium or sodium intake
- What this could lead to
- If it works, this could show that boosting potassium is easier and better for blood vessel health than cutting salt.
- What could go wrong
- This is a small, early study in healthy people, so results may not apply to those with health conditions. Dietary changes rely on self-reporting, which can be inaccurate.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 32 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2026
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 45 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Willing and able to attend in-person laboratory visits * Usual sodium intake ≥3,000 mg/d for females and ≥4,000 mg/d for males * Usual potassium intake ≤2,500 mg/d in females and ≤3,000 mg/d in males Exclusion Criteria: * BMI ≥35 kg/m2 * Seated blood pressure ≥130/80 mmHg * Current diagnosis or history of diabetes, renal disease, cancer, cardiovascular disease, or major cardiovascular event (e.g. heart attack or stroke) * Current or recent use of a diuretic (within the past 6 months) * Elevated blood lipids (LDL cholesterol ≥190 mg/dL) * Elevated serum potassium level (\>5.1 mmol/L) * Elevated BUN (\>22 mg/dL) * Elevated creatinine (\>1.2 mg/dL) * Low eGFR (\<90 mL/min/1.73 m²) * Current or recent use of tobacco, nicotine, or illicit drugs * Radical hysterectomy or oophorectomy (females)\* * Pregnant or lactating * Following a weight-loss diet, or intending to gain or lose weight during the study period
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Florida State University
RECRUITINGTallahassee, Florida, 32304, United States
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