Table 2 Included manuscripts for revision

WHO

• eLENA statement (recommendations) [5]

USPSTF

None

PrevInfad

• 2009 recommendations and supporting document [6]

CDC

• Recommendations [7]

NICE

• Vitamin D: supplement use in specific population groups; 2014; updated in 2017 (Guideline) [8]

• Maternal and child nutrition; 2008, updated in 2014 (Guideline) [9] (Note: recommendations on vitamin D in this guideline have been replaced by the Vitamin D 2014 guideline)

Cochrane Library

• Yakoob 2016 – Vitamin D supplementation for preventing infections in children under five years of age (Systematic review) [10]

• Winzenberg 2010 – Vitamin D supplementation for improving bone mineral density in children (Systematic review) [11]

• Lerch 2007 – Interventions for the prevention of nutritional rickets in term born children [12]

• Yu 2017 – The effects of oral vitamin D supplementation on linear growth and non-communicable diseases among infants and children younger than five years of age (Protocol) [13]. Access to the unpublished stage of the systematic review: Huey 2019 [14]

• Tan 2018 – Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health (Protocol) [15]

• Pharande 2015 – Vitamin D supplementation for prevention of vitamin D deficiency in preterm and low birth weight infants (Protocol) [16]

Others

• Munns 2016 – Global consensus recommendations on prevention and management of nutritional rickets (Recommendations and supporting evidence from literature review) [17]

• Mimouni 2017 – Vitamin D requirements in infancy: a systematic review (Systematic review) [18]