Aww, congratulations sa baby mo mamsh! At one month, honestly ang best na makukuha niya is breastmilk or formula lang talaga, lahat ng kailangan niya ay nandoon na, so wag muna mag-overthink sa vitamins pa. That said, it's really best to ask your pedia sa next check-up kung may specific vitamins na kailangan niya, like Vitamin D drops or iron, depending sa feeding method at health niya, bawat baby ay different kasi.