Is a blood test for vitamin D ranging in the high twenties be good?

William Lee Dubois
Endocrinology Diabetes & Metabolism
This is hard to answer because there are several different vitamin D tests and even within one specific test, different labs use different reference ranges.

Vitamin D results are generally broken into four categories: Normal, where we’d expect a healthy person to be. On the low side we have two separate categories, insufficiency which means a little bit low, and deficiency, which can be serious and have noticeable symptoms like fatigue of varying degrees as well as some long term heath risks. And of course, you can have too much vitamin D too, and that’s not good either, and this will be noted as high.

Look at your lab results. Somewhere on the form you should find the number ranges for the various categories. You can then compare your results to the reference ranges to see what category you are in, and how close to the borderline you are.

Both forms of low vitamin D are easy to treat with supplements or increased sunshine. If you are very, very low your doctor will probably start you on extremely high doses of vitamin D for thirty days, then lower you to a maintenance dose and retest you in several months.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.