For years I've been taking a multivitamin plus a separate Vitamin D supplement (2000 IU) plus a separate Vitamin K to help assimilate the Vitamin D. This formula was recommended my my women's health care provider and contains Vitamins D and K, reducing three supplements to one. Also, some multivitamins can make me feel nauseated if taken on an empty stomach. This one doesn't. Very happy with this multivitamin and have re-ordered several times now.