We started Vitamin D from about 2 months. We had the D Vi Sol but hated it (the 5ml seemed so much and it was difficult to administer. We then discovered Baby D-drops which are much easier to administer (and cheaper, too).
At baby's 1 year appointment, I asked my paediatrician if we should continue with Vitamin D, seeing as baby is now on solid foods. He said we can continue to supplement indefinitely.
So, whenever we remember, we give the d-drop but aren't too concerned if we miss a day, since a lot of other foods in our toddler's diet are vitamin D enriched.
