The Claim

In adults undergoing hip or lower extremity orthopedic surgery under spinal anesthesia, preoperative oral intake of 200 mL of 10% dextrose solution does not significantly reduce postoperative nausea or vomiting, despite reducing anxiety, indicating that anxiety reduction alone is insufficient to prevent postoperative nausea or vomiting in this population.

Source: The effect of preoperative oral carbohydrate intake on perioperative well-being in patients undergoing hip and lower extremity orthopedic surgery under spinal anesthesia: a randomized controlled trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
66score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

In adults having hip or leg surgery with spinal anesthesia, drinking 200 mL of a 10% dextrose solution before surgery reduces anxiety but does not reduce postoperative nausea or vomiting.

See the scientific wording

In adults undergoing hip or lower extremity orthopedic surgery under spinal anesthesia, preoperative oral dextrose intake (200 mL of 10% solution) does not significantly reduce postoperative nausea or vomiting despite reducing anxiety, suggesting that anxiety reduction alone is insufficient to prevent these symptoms in this population.

Why this might work

Drinking a sugary solution before surgery triggers the gut to release a hormone that improves blood sugar control and shuts down the body's stress response, which lowers anxiety but does not stop nausea or vomiting after surgery.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: The effect of preoperative oral carbohydrate intake on perioperative well-being in patients undergoing hip and lower extremity orthopedic surgery under spinal anesthesia: a randomized controlled trial

    Drinking a sugary drink before surgery made patients feel less anxious, but it didn’t make them feel less sick to their stomach or stop them from throwing up. So, being less anxious doesn’t seem to be enough to prevent nausea after this kind of surgery.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.