Change in ADAS‐Cog · people with Alzheimer's disease
1 finding from 1 review
Number of participants experiencing any serious adverse events · people with Alzheimer's disease
Vitamin E (capsules 2000 IU/day in two divided doses) showed no clear difference in adverse events Number of participants reporting ≥ 1 serious adverse… compared with placebo (moderate certainty).
1 finding from 1 review
Deaths Number of deaths · people with Alzheimer's disease
Vitamin E (capsules 2000 IU/day in two divided doses) showed no clear difference in deaths Number of deaths compared with placebo (moderate certainty).
1 finding from 1 review
Activities of daily living · people with Alzheimer's disease
1 finding from 1 review
Progression to Alzheimer's disease Number of people progressing to AD · MCI
Vitamin E (capsules 2000 IU/day in two divided doses) showed no clear difference in progression to Alzheimer's disease Number of people progressing to AD compared with placebo (moderate certainty).
1 finding from 1 review
Change in ADAS‐Cog · MCI
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Number of participants experiencing any serious adverse events · MCI
1 finding from 1 review
Death Number of deaths over 36 months · MCI
Vitamin E (capsules 2000 IU/day in two divided doses) showed no clear difference in death Number of deaths over 36 months compared with placebo (moderate certainty).
1 finding from 1 review
Activities of daily living · MCI
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
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
Incidence of dementia ‐ not measured · MCI
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Cognitive function · MCI
1 finding from 1 review
Cognitive subdomain: episodic memory measured at the end of · MCI
1 finding from 1 review
Executive function (specific cognitive function) · MCI
1 finding from 1 review
Information processing speed · MCI
1 finding from 1 review
Quality of life · MCI
1 finding from 1 review