What do systematic reviews say?

Vitamin D given to infants vs vitamin D given to lactating mothers

• Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health 2020 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 92 participants
  Very low

Vitamin D given to infants vs placebo or no treatment

• Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 34 participants
  Very low

Vitamin D given to lactating mothers vs placebo or no treatment

Vitamin D given to lactating mothers may leads to lower nutritional rickets ‐ biochemical Alkaline phosphatase, calcium and… compared with placebo or no treatment (low certainty).

• Vitamin D supplementation for term breastfed infants to prevent vitamin D deficiency and improve bone health 2020 · Cochrane Headline outcomes only
  RR 0.06 [0.01, 0.44]
  2 studies · 229 participants
  Low