Estonian Doctors Question Routine Vitamin D Testing for Most Adults

A recent article in the Estonian medical journal Eesti Arst has sparked debate over routine vitamin D testing. Endocrinologist Vallo Volke argued that regular blood measurements for adults under 75 are unnecessary. His criticism comes as vitamin D supplements remain widely used, despite unclear scientific guidelines on ideal doses or serum levels.

Volke’s 2024 publication challenged the common practice of frequent vitamin D testing. He suggested that most adults under 75 do not need regular supplementation or blood checks. The Estonian Health Insurance Fund supports this view, stating that routine vitamin D tests should not be included in standard blood work.

Doctors can still request vitamin D level tests if they suspect a deficiency. The fund’s guidelines also recommend supplements for children, adolescents, pregnant women, and those aged 75 and older. For this age group, extra vitamin D is advised, though blood testing is not always required. The debate extends to laboratory standards. Many Estonian labs now use the U.S. Endocrine Society’s updated threshold of 50 nmol/L as the normal level. However, Synlab continues to apply the older reference range of 75 nmol/L.

Volke’s recommendations align with the Health Insurance Fund’s position on selective testing. The focus remains on targeted supplementation for at-risk groups rather than widespread screening. With conflicting lab standards and evolving guidelines, the discussion on vitamin D management is likely to continue.