No. Beta 1, 3-D glucan is intensely purified from baker’s yeast (Saccharomyces cerevisiae) and does not contain enough yeast proteins to cause an allergic reaction. Also, beta glucan is not live yeast, therefore it cannot cause or aggravate a yeast infection. Beta 1, 3-D glucan is rated GRAS (Generally Regarded as Safe) by the US Food and Drug Administration (FDA).

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