What is a good Vitamin D, 25-OH level?

BioForge works to an optimal range rather than the lab's reference flag. For Vitamin D, 25-OH that is 40–60, measured in ng/mL. A result inside the lab's normal range can still sit outside the range where most people feel and function well.

Learn · Vitamins, Minerals & Exposure

Vitamin D, 25-OH

Measured in ng/mL

A hormone more than a vitamin. Involved in testosterone production, immunity, mood and bone density.

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

<30 · Deficient

Optimal

40–60

High

>100 · Toxicity >150

What moves Vitamin D, 25-OH

Sun exposure, latitude, skin pigmentation, body fat (fat sequesters it), and supplementation. Requires magnesium and vitamin K2 to be used properly. Deficiency is common even in Florida because of indoor work and sunscreen.

Related markers in Vitamins, Minerals & Exposure

Vitamin B12 Folate Magnesium, RBC Zinc, RBC Copper, RBC Selenium, RBC Urine Toxic Metals (21)

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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