What do systematic reviews say?

Nutrition support vs no intervention, placebo, or treatment

The review found no eligible studies for this question.

• Nutrition support in hospitalised adults at nutritional risk 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Preoperative oral nutritional support vs normal diet

It is very uncertain whether preoperative oral nutritional support changes mortality compared with normal diet (very low certainty).

• Perioperative nutrition for the treatment of bladder cancer by radical cystectomy 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 28 participants
  Very low

Supportive interventions for enhancing dietary intake vs comparators

Supportive interventions for enhancing dietary intake probably leads to lower all‐cause mortality compared with comparators (moderate certainty).

• Supportive interventions for enhancing dietary intake in malnourished or nutritionally at‐risk adults 2016 · Cochrane Headline outcomes only
  RR 0.78 [0.66, 0.92]
  12 studies · 6683 participants
  Moderate

Hypocaloric nutrition vs control

• Prescribed hypocaloric nutrition support for critically‐ill adults 2018 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 1291 participants
  Very low

Hypocaloric nutrition vs control

• Prescribed hypocaloric nutrition support for critically‐ill adults 2018 · Cochrane Headline outcomes only
  no estimate extracted
  7 studies · 2611 participants
  Very low

Hypocaloric nutrition vs control

• Prescribed hypocaloric nutrition support for critically‐ill adults 2018 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 1775 participants
  Very low

Intervention not reported

It is very uncertain whether the intervention changes mortality (very low certainty).

• Nutritional support for critically ill children 2016 · Cochrane Headline outcomes only
  RR 1.33 [0.32, 5.54]
  1 study · 72 participants
  Very low