{"id":"9133cbd867e5962e5038ce5657706603","slug":"vitamin-d-give-exclusively-breastfed-3-month-old-baby","question":"How much vitamin D should I give my exclusively breastfed 3 month old baby?","answer":"Your exclusively breastfed baby needs a daily vitamin D supplement of 400 IU, which you should have started giving shortly after birth and continue through around age 1, when they begin eating enough vitamin D-rich foods on their own.\n\nBreast milk alone doesn't provide adequate vitamin D to keep your baby's bones strong and prevent rickets. Liquid drops are the easiest form to give. The guidelines recommend starting this supplement within the first few days of life, so if you haven't already, talk to your pediatrician about beginning it now.\n\nYour pediatrician can also advise you on whether iron supplementation makes sense for your baby starting around 4 months, since breast milk's iron content becomes insufficient as babies grow. A quick conversation with them will confirm the right brand and ensure your baby's getting what they need.","sources":"[{\"pmid\":\"35122668\",\"title\":\"Effect of Oral Vitamin D3 Supplementation in Exclusively Breastfed Newborns: Prospective, Randomized, Double-Blind, Placebo-Controlled Trial.\",\"journal\":\"Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research\",\"year\":\"2022\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/35122668/\",\"score\":0.9},{\"pmid\":\"guideline-e1f26c6b0be2\",\"title\":\"AAP — Breastfeeding (Part 3 of 3)\",\"journal\":\"AAP Clinical Guidelines\",\"year\":\"2022\",\"url\":\"https://www.healthychildren.org/English/ages-stages/baby/breastfeeding/Pages/Where-We-Stand-Breastfeeding.aspx\",\"score\":0.86},{\"pmid\":\"31101452\",\"title\":\"Vitamin D and health - The missing vitamin in humans.\",\"journal\":\"Pediatrics and neonatology\",\"year\":\"2019\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/31101452/\",\"score\":0.84}]","thread_json":null,"topic":"vitamin-d-babies","view_count":0,"created_at":"2026-10-27T00:00:56.248Z"}