For most babies vitamin supplements are probably unnecessary, so long as they are eating fresh food in sufficient quantity and drinking formula milk until the age of one. However the Department of Health recommends that if your baby is being breastfed (breast milk doesn’t contain enough vitamin D) or is drinking less than 200ml (18 fl oz) of infant formula a day, you should give your baby vitamin supplements from six months to two years of age. Ask your health visitor or doctor for advice.