Effects of parenteral ω-3 fatty acid supplementation in postoperative gastrointestinal cancer on immune function and length of hospital stay: a systematic review and meta-analysis.

Omega-3 fatty acids are widely used in nutritional support. However, whether parenteral supplementation with ω-3 fatty acids is effective for gastrointestinal cancer patients remains uncertain. This study assessed the effects of this form of parenteral nutrition on immune function and clinical outcomes in postoperative gastrointestinal cancer patients.