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
Visual field sensitivity (visual field) · retinitis pigmentosa
1 finding from 1 review
Visual acuitychange in logMAR visual acuity, may be reported as ETDRS · retinitis pigmentosa
It is very uncertain whether vitamin A and fish oils (docosahexaenoic acid) changes visual acuitychange in logMAR visual acuity, may be reported as ETDRS compared with placebo, vitamins (including vitamin A), or no therapy (very low certainty).
1 finding from 1 review
Electroretinography (ERG) · retinitis pigmentosa
1 finding from 1 review
Optical coherence tomography (OCT) · retinitis pigmentosa
1 finding from 1 review
Adverse effects: as reported by studies · retinitis pigmentosa
1 finding from 1 review
Pre‐eclampsia · pregnant women and their infants..
1 finding from 1 review
Gestational diabetes · pregnant women and their infants..
It is very uncertain whether vitamin D + calcium + other vitamins and minerals changes gestational diabetes compared with calcium + other vitamins and minerals (but no vitamin D) (very low certainty).
1 finding from 1 review
Maternal adverse event: hypercalcaemia · pregnant women and their infants..
1 finding from 1 review
Adverse events ‐ Hypercalciuria · pregnant women and their infants..
1 finding from 1 review
Preterm birth · pregnant women and their infants..
Vitamin D + calcium + other vitamins and minerals showed no clear difference in preterm birth (less than 37 weeks' gestation) compared with calcium + other vitamins and minerals (but no vitamin D) (low certainty).
1 finding from 1 review
Low birthweight · pregnant women and their infants..
Vitamin D + calcium + other vitamins and minerals showed no clear difference in low birthweight (less than 2500 g) compared with calcium + other vitamins and minerals (but no vitamin D) (low certainty).
1 finding from 1 review
Total hip BMD · premenopausal women (ages 18–36 years)
1 finding from 1 review
Lumbar spine bone mineral density (BMD) · premenopausal women (ages 18–36 years)
1 finding from 1 review
Quality of life · premenopausal women (ages 18–36 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Vertebral fracture · premenopausal women (ages 18–36 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Non‐vertebral fractures · premenopausal women (ages 18–36 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Acceptability: total withdrawals · premenopausal women (ages 18–36 years)
Calcium and vitamin D showed no clear difference in withdrawals from the study for any reason compared with placebo (low certainty).
1 finding from 1 review
Serious adverse events · premenopausal women (ages 18–36 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Total fetal loss (including miscarriages or combined miscarriages and stillbirths) · pregnant women
Vitamin C and vitamin E showed no clear difference in total fetal loss compared with placebo (high certainty).
1 finding from 1 review