Simplified PRAL (Acid/Base)

[Guest guest]

Dr. Remer has published new research in the American Journal of Clinical

Nutrition (2003 May;77(5):1255-60). This article is about a simplified way to

estimate the Potential Renal Acid Load of foods using only protein, phosphorus,

potassium and magnesium. The previous method was more complicated, including the

need to input (not commonly available) chloride values. I've only been able to

locate the abstract on the internet. Has anyone read this paper and can they

post this simplified equation (or the full article)?

[Guest guest]

> Dr. Remer has published new research in the American Journal

of Clinical Nutrition (2003 May;77(5):1255-60). This article is about

a simplified way to estimate the Potential Renal Acid Load of foods

using only protein, phosphorus, potassium and magnesium. The previous

method was more complicated, including the need to input (not

commonly available) chloride values. I've only been able to locate

the abstract on the internet. Has anyone read this paper and can they

post this simplified equation (or the full article)?

Hi All,

I hope that this helps:

ABSTRACT

............renal net acid excretion (NAE) was analyzed (NAE an ) and

estimated (NAE es ). Potential renal acid load (PRAL), the diet-based

component of NAE es , corrects for intestinal absorption of ingested

minerals and sulfur-containing protein. A urinary excretion rate of

organic acids (OAs) propor-tional to body surface area was assumed

for the complete estimate (NAE es = PRAL + OA es )...... A simplified

estimate based on only 4 components of dietary PRAL (protein,

phosphorus, potassium, and magnesium)yielded almost identical

associations. ....

PRAL (mEq/d) = 0.49 protein (g/d)

+ 0.037 phosphorus (mg/d)

- 0.021 potassium (mg/d)

- 0.026 magnesium (mg/d)

- 0.013 calcium (mg/d)

Cheers, Al.