Signs you don’t need Vitamin D supplements but are taking them anyway The Times of IndiaVitamin D supplements may lower your level of one type of vitamin D New ScientistPharmacist says ‘don’t’ as warning issued over vitamin D tablets Liverpool EchoScientists study vitamins D2 vs. D3 and make a strange conclusion about which is the better supplement Earth.comVitamin D2 Supplements May Reduce Vitamin D3 in Your Body Verywell Health