Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Beta glucans are naturally occurring polysaccharides found in the cell walls of cereals, yeast, bacteria, and fungi. Their use to support convalescence—recovery after illness, surgery, or stress—is primarily supported by scientific research rather than traditional medicine. Beta glucans are known for their immunomodulatory properties, particularly their ability to stimulate the activity of macrophages, neutrophils, and natural killer cells, which play key roles in immune defense and tissue repair.

Several clinical and preclinical studies have shown that beta glucans can enhance immune function, reduce the risk of infection, and improve outcomes in patients recovering from surgery, trauma, or critical illness. Notably, a number of randomized controlled trials have demonstrated that beta glucan supplementation may reduce postoperative infections and improve recovery parameters in surgical patients. There is also evidence from animal models that beta glucans may promote faster wound healing and modulate inflammatory responses during convalescence.

Despite this, the clinical evidence is not yet robust enough for unequivocal endorsement in all convalescent contexts. Most positive studies are small or focus on specific patient groups (e.g., surgical or critically ill). Large-scale, high-quality clinical trials are still needed to confirm these benefits more broadly. Nevertheless, the current body of scientific evidence justifies the use of beta glucans as an adjunct in supporting immune recovery and reducing complications during convalescence.

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