Dr. Nicole Saphier still recommends multivitamins despite new study Fox News medical contributor Dr. Nicole Saphier joins ‘Fox & Friends Weekend’ to discuss the new study finding multivitamins do not decrease people’s risk of death. NEW You can now listen to Fox News articles! Vitamin D is known to be essential to many aspects of human health — but a new study suggests that taking a certain form of it can have a negative effect. The more potent and longer-lasting form, vitamin D3 (