Tag: Vitamin d2 side effects

Around 1 billion people globally may have a vitamin D deficiency, making supplementation common. This often leads to the question, can vitamin D2 cause side effects? While generally safe at recommended doses, when taken improperly or in excess, this form of the fat-soluble vitamin can indeed lead to serious adverse effects related to a condition called hypervitaminosis D.

While most people do not experience side effects from proper vitamin D supplementation, excessive intake can lead to a condition called hypervitaminosis D. The question, "Does vitamin D2 make you drowsy?" is often tied to this toxicity, where drowsiness is a potential symptom, rather than a direct side effect of normal use.