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Beta-glucan improved mood and immunity

Prior studies have shown that baker’s yeast beta-glucan reduces symptoms of cold and flu. In this study, 77 healthy women, average age 38, with moderate levels of psychological stress took 250 mg of yeast beta-glucan per day, or a placebo.

After 12 weeks, 29 percent of the women in the placebo group reported upper respiratory symptoms compared to 10 percent of the women in the beta-glucan group. Energy levels improved 7 percent in the placebo group and 41 percent for beta-glucan. Overall mood scores improved 16 percent for women taking the placebo, and 29 percent for women who took beta-glucan.
 
Discussing their findings, doctors said women who took beta-glucan reported lower levels of upper respiratory symptoms and that they felt better after taking beta-glucan, which doctors later confirmed in psychological assessments that showed the women had increases in energy and vigor and improvements in their overall sense of well-being.

Reference: J Am Coll Nutr. 2012 Aug; 31(4): 295-300

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