Findings

What do systematic reviews say?

1 questions · 1 findings · 1 reviews

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 1 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Adverse effects: as reported by studies · retinitis pigmentosa

1 finding from 1 review

Vitamin A and fish oils for preventing the progression of retinitis pigmentosa 2020 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 944 participants
Very low