What do systematic reviews say?

Balanced crystalloid solutions vs Normal saline

Balanced crystalloid solutions showed no clear difference in need for additional fluids compared with 0.9% saline (low certainty).

• Balanced crystalloid solutions versus 0.9% saline for treating acute diarrhoea and severe dehydration in children 2023 · Cochrane Headline outcomes only
  RR 0.67 [0.26, 1.72]
  Studies not reported
  Low