iHerb.com - Customer Questions & Answers
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iHerb Customer
September 11 2017
why use vitamin D2, not D3, is it becuase D2 is vegetarian?
iHerb Customer
January 18 2019
Best Answer
Yes. D2 (ergocalciferol) is vegan and is made when yeast is exposed to UV light, while D3 (cholecalciferol) is made form lanolin - oil obtained from sheep's wool.
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