When people with controlled high blood pressure eat a meal high in potassium, their blood potassium levels go up significantly compared to a low-potassium meal, especially within an hour and two hours after eating.

Scientific Claim

Serum potassium levels significantly increase in treated hypertensive patients after consuming a high-potassium meal (2278 mg) compared to a low-potassium meal (530 mg) at 60 minutes (3.68 vs 3.59 mmol/L, p=0.05) and 120 minutes (3.90 vs 3.62 mmol/L, p=0.05).

Original Statement

“Serum K⁺ (mmol/L) ... High K⁺ Meal ... 60 min: 3.68 ± 0.38 * ... 120 min: 3.90 ± 0.52 *”

From study:Postprandial Vascular Effects of a High Potassium Meal in Patients with Treated Hypertension

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

definitive

Can make definitive causal claims

Assessment Explanation

The RCT design allows for causal inference regarding serum potassium changes, and the claim accurately states the significant increase.

Evidence from Studies

Supporting (1)

Postprandial Vascular Effects of a High Potassium Meal in Patients with Treated Hypertension

Randomized Controlled Trial

Human

2024 Dec 27

Contradicting (0)

No contradicting evidence found

Source Study

Postprandial Vascular Effects of a High Potassium Meal in Patients with Treated Hypertension

Score: 51

DOI: 10.3390/nu17010045

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