What is a good BUN & BUN/Creatinine Ratio level?

BioForge works to an optimal range rather than the lab's reference flag. For BUN & BUN/Creatinine Ratio that is BUN 10–18 or Ratio 10–16, measured in mg/dL · ratio. A result inside the lab's normal range can still sit outside the range where most people feel and function well.

Learn · Kidney & Urine

BUN & BUN/Creatinine Ratio

Measured in mg/dL · ratio

A protein waste product your kidneys clear, and its ratio to creatinine. The ratio separates dehydration from a genuine kidney issue.

What the numbers mean

These are the ranges BioForge works to. They are not the same as a lab's reference range, which is built from the general population rather than from people who feel well.

Low

BUN <6 · Ratio <9

Optimal

BUN 10–18 · Ratio 10–16

High

BUN >20 · Ratio >20

What moves BUN & BUN/Creatinine Ratio

BUN rises with high protein intake, dehydration, and hard training — all common in this population and none of them kidney disease. A high ratio with normal creatinine usually just means you arrived thirsty. Both high together is what warrants a closer look.

Related markers in Kidney & Urine

Creatinine eGFR Cystatin C Uric Acid Urinalysis

This page is educational and is not medical advice. Ranges are general and do not account for your history, medications or symptoms — a single number never decides a protocol. Your results are interpreted by a licensed clinician alongside everything else about you. Back to the Learning Center

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