Question: how much vitamin d should you give a newborn?
Answer: If you're feeding your baby less than 32 ounces (about 1 liter) a day of vitamin D-fortified formula, give your baby 400 IU of liquid vitamin D a day — starting in the first few days after birth. Continue giving your baby vitamin D until he or she drinks at least 32 ounces (about 1 liter) a day.