Whole milk?

Jesa • Pregnant with TWINS after 9 Long years of TTC 💙💙 (2019) 2022 Pregnant again with twins 😊

My boys are 8and half months and are fully breastfeed is it ok if I give them whole milk once a day? They do take vitamin D drops once a day would the whole milk give them the vitamin D they need? First time mom to twins thanks in advance ☺️