And to provide an immune strength improving and regulating agent capable of increasing the amount of liquid IgA produced by the immune strength improving agent, suppressing cold symptoms, and suppressing allergic symptoms. Specifically, the present invention relates to a method for producing an immunotherapeutic agent, which comprises inoline as an active ingredient, and specifically, has a dose of inoline that improves immune strength of 3 g or more and 8 g or less relative to salivary IgA or cold symptoms, and 8 g or more and 20 g or less relative to allergic symptoms, The invention is a regulator that improves immune strength. None

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