Vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
It is very uncertain whether vitamin D given to infants changes vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L compared with vitamin D given to lactating mothers (very low certainty).
1 finding from 1 review
Vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
It is very uncertain whether vitamin D given to infants changes vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L compared with vitamin D given to lactating mothers (very low certainty).
1 finding from 1 review
Serum 25‐OH vitamin D level at latest time reported nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
1 finding from 1 review
Cancer occurrence in trials using vitamin D₃ (cholecalciferol) · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…
Vitamin D showed no clear difference in cancer occurrence in trials using vitamin D₃ (cholecalciferol) compared with placebo or no intervention (moderate certainty).
1 finding from 1 review
Cancer mortality in trials using vitamin D3 (cholecalciferol) ( · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…
Vitamin D may leads to lower cancer mortality in trials using vitamin D₃(cholecalciferol) compared with placebo or no intervention (low certainty).
1 finding from 1 review
Adverse events ‐ Nephrolithiasis in trials using vitamin D3 combined with calcium · healthy participants or recruited among the general population; individuals diagnosed with a specific disease in a stable phase or with…
Vitamin D may leads to higher adverse events: nephrolithiasis in trials using vitamin… compared with placebo or no intervention (low certainty).
1 finding from 1 review
Vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
Vitamin D given to infants may leads to lower vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L compared with placebo or no treatment (low certainty).
1 finding from 1 review
Vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
It is very uncertain whether vitamin D given to infants changes vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L compared with placebo or no treatment (very low certainty).
1 finding from 1 review
Serum 25‐OH vitamin D level at latest time reported nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
1 finding from 1 review
Serum 25‐OH vitamin D level at latest time reported nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
1 finding from 1 review
Vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
Vitamin D given to lactating mothers may leads to lower vitamin D insufficiency: 25‐OH vitamin D < 50 nmol/L compared with placebo or no treatment (low certainty).
1 finding from 1 review
Vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L · term breastfed infants to prevent vitamin D deficiency and improve bone health
Vitamin D given to lactating mothers may leads to lower vitamin D deficiency: 25‐OH vitamin D < 30 nmol/L compared with placebo or no treatment (low certainty).
1 finding from 1 review
Maternal vitamin B12 deficiency · pregnant women
It is very uncertain whether summary of findings table ‐ Vitamin B12 supplementation changes maternal vitamin B12 deficiency compared with placebo/no vitamin B12 supplementation (very low certainty).
1 finding from 1 review
Mean serum vitamin D concentrations · children under 5 years of age
1 finding from 1 review
Any adverse effects of vitamin supplementation sufficient to stop supplementation · pregnant women
Vitamin C and vitamin E showed no clear difference in any adverse effects of vitamin supplementation sufficient to stop… compared with placebo (moderate certainty).
1 finding from 1 review
Vitamin A deficiency · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to lower vitamin A deficiency compared with placebo or usual care (moderate certainty).
1 finding from 1 review
Maternal vitamin D concentration at term (25‐hydroxyvitamin D) (nmol/L) (ALL) · pregnant women
Meta-analysis of randomised trials of vitamin D supplementation for Maternal vitamin D concentrations at term: WMD 47.08 (95% CI 23.76 to 70.39), statistically significant. Umbrella review outcome-level evidence grade: Probable.
1 finding from 1 review
WMD 47.08 [23.76, 70.39]
4 studies
GRADE not reported
Serum 25-hydroxyvitamin D level · people with sickle cell disease
1 finding from 1 review
Nutritional rickets‐ biochemical · term breastfed infants to prevent vitamin D deficiency and improve bone health
1 finding from 1 review
Hypercalcaemia · term breastfed infants to prevent vitamin D deficiency and improve bone health
Vitamin D given to infants showed no clear difference in adverse effect (hypercalcaemia) compared with vitamin D given to lactating mothers (low certainty).
1 finding from 1 review