Supplementation with antioxidants and other nutrients has been studied for its potential to influence recovery and complications in patients undergoing surgery.

A randomized, double-blind, placebo-controlled study published in the Free Radical Biology and Medicine (2009; 49(5):599–606) examined men undergoing surgery to repair the anterior cruciate ligament (ACL) of the knee. For two weeks prior to surgery, the control group received a placebo, while the intervention group received 500 mg of vitamin C and 200 IU of vitamin E twice daily. Supplementation was continued for twelve weeks following surgery.

The group receiving the nutrients showed lower levels of a biochemical marker associated with inflammation, identified by the authors as a pro-inflammatory cytokine. The findings suggest that antioxidant supplementation may be associated with reduced inflammatory activity and possibly less post-surgical muscle atrophy.

Additional research reported in Medical Tribune (August 6, 1992; 25) evaluated 85 patients undergoing abdominal surgery for upper gastrointestinal malignancies. Participants were randomly assigned to receive either a standard enteral diet or a diet supplemented with arginine, omega-3 fatty acids, and RNA. Patients receiving the supplemented diet were discharged from the hospital an average of four days earlier, experienced approximately 70% fewer hospital-acquired infections, and had a lower incidence of postoperative pneumonia.

A study published in Heart, Lung and Circulation (2006; 15(3):172–181) compared cardiac surgery patients who received a combined program of nutritional support, physical therapy, and mental training with patients who received surgery alone. Nutritional support prior to surgery included CoQ10, alpha-lipoic acid, magnesium orotate, and omega-3 fatty acids. The program also incorporated light exercise, stretching, and stress-reduction techniques. Questionnaire data showed that patients receiving the combined intervention reported higher overall quality-of-life scores after surgery. The authors suggested that such integrated programs may improve postoperative outcomes.

Research published in the American Heart Journal (June 2003; 145(6):1108–1113) examined serum magnesium levels and postoperative outcomes in cardiac surgery patients. Low magnesium was defined as a serum level below 1.8 mmol/L at any point during the eight days preceding surgery. Among 957 patients, those with low magnesium levels had a higher rate of adverse events following surgery, as well as approximately double the incidence of Q-wave myocardial infarction and all-cause mortality during the year following surgery.

Earlier research in the Surgery (1992; 112:56–67) also evaluated nutritional support in abdominal surgery patients. Eighty-five individuals were randomized to receive either a standard enteral diet or one supplemented with arginine, RNA, and omega-3 fatty acids. Patients receiving the supplemented diet experienced fewer cases of pneumonia, shorter hospital stays, and improved measures of immune function.

Taken together, these studies suggest that nutritional status and targeted nutrient support may influence inflammatory responses, immune function, complication rates, and recovery following surgery. While the findings vary by study design, patient population, and type of surgery, the research highlights the potential role of nutritional factors as part of the broader perioperative picture.

Educational note:
This article is for informational purposes only and is not intended as medical advice.