Sodium vs Potassium Education to Improve Vascular Health
Recruiting now · Not applicable
Conditions studied: Healthy
In brief
The goal of this clinical trial is to determine if a self-selected high potassium diet is easier to achieve and more effective at improving vascular health than a low sodium diet in generally healthy young adults who typically consume more than the recommended amount of sodium. The main questions it aims to answer are: 1. Is it easier for young adults to increase their potassium intake, rather than reduce their sodium intake? 2. Is a self-selected high potassium diet better at improving vascular health compared to a self-selected low sodium diet? Researchers will compare the effectiveness of an education-based intervention centered only on increasing dietary potassium intake against an education-based intervention centered only on reducing dietary sodium intake. Participants will be randomly assigned to receive comprehensive dietary education on adopting either a high-potassium diet or a low-sodium diet. Education will be delivered in four weekly one-on-one sessions. Following the four-week education period, participants will be encouraged to change their diet based on what they have learned. Measures of dietary compliance (urine samples and diet records) and cardiovascular health (blood pressure, endothelial function) will be assessed at two, four, and six months post-education.
Key facts
- Study ID
- NCT07221448
- Run by
- Florida State University
- People needed
- 32
- Starts
- 2026-04-20
- Expected to finish
- 2027-09-30
- Last updated by the study team
- 2026-04-23
Who can join
Age: 18 and older, up to 45. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- 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
You may not qualify if…
- 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
Where it is running
- Florida State University — Tallahassee, Florida, United States (enrolling)
Full record on ClinicalTrials.gov
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