Urine Toxic Metals (21)
A twenty-one metal urine screen — lead, mercury, arsenic, cadmium and seventeen more. Exposure hides in old paint and pipes, well water, large fish, imported cosmetics and ceramics, hobby work, and trades. Corrected for creatinine so hydration does not change the answer.
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.
What moves Urine Toxic Metals (21)
Seafood raises arsenic within days — the organic arsenic in fish is harmless and is the single most common false alarm, so we ask for 48 hours without seafood before collection. Gadolinium reflects a recent MRI with contrast. Smoking raises cadmium. The cutoffs above are for an ordinary unprovoked urine collection; a sample taken after a chelating agent is not comparable to them and we do not order one. Finding and removing the exposure matters far more than chasing the number down.
Related markers in Vitamins, Minerals & Exposure
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
Want to know where your numbers actually sit?
Every BioForge protocol starts from your own bloodwork. The first 15-to-30-minute call is free.