Research Topic: Natural killer cells

Evaluation of Immune Modulation by β-1,3; 1,6 D-Glucan Derived from Ganoderma lucidum in Healthy Adult Volunteers, A Randomized Controlled Trial

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A study tested whether a supplement made from Reishi mushroom could boost immune system function in healthy adults. Over 84 days, people taking the Reishi β-glucan supplement showed significant improvements in immune cells and antibodies compared to those taking a placebo. The supplement was safe and well-tolerated with no negative side effects, suggesting it may help strengthen the body’s natural defenses against infections.

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Effects of Chronic Barley Consumption on Upper Respiratory Tract Symptoms in Japanese Healthy Adults: A Randomized, Parallel-Group, Controlled Trial

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This study found that eating cooked waxy barley daily for 8 weeks reduced sneezing and nasal congestion in healthy adults compared to those eating white rice. Participants who ate barley also reported feeling less tired and experienced improved mood. The barley contains a fiber called β-glucan that appears to boost the body’s natural immune cells, helping protect against cold symptoms.

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