Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health

This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: To determine the effect of vitamin D supplementation given to: infants compared to placebo or no intervention on vitamin D deficiency, bone density and growth in healthy term breastfed infants; lactating mothers compared to placebo or no intervention on vitamin D deficiency, bone density and growth in healthy term breastfed infants; infants compared to vitamin D supplementation given to lactating mothers on vitamin D deficiency, bone density and growth in healthy term breastfed infants; infants compared periods of infant sun exposure on vitamin D deficiency, bone density and growth in healthy term breastfed infants. For each of the above comparisons: to determine adverse effects from vitamin D supplementation compared to placebo, no intervention or other interventions in healthy term breastfed infants.