Almost 5 to 13 of young children aged 1-5-
year-old have vitamin D deficiency.
• Vitamin D deficiency in young children is associated
with impaired bone growth, and the skeletal
disorder rickets in severe vitamin D deficiency.
• The US Institute of Medicine (IOM) recommends at
least 10 μg/day vitamin D from food sources and
• The Food Safety Authority of Ireland (FSAI)
recommends vitamin D-only supplements:
0-12 month-old: 5 μg/day for breastfed infants and
those consuming formula 300 mL/day.
➢ 1–5 year-old: 5 μg/day from Halloween to St
Patrick’s Day during the extended winter months.