This invention is to provide an agent for therapy and prevention of allergic
diseases which has no adverse action, shows a high safety even by administration
for a long period and is able to be utilized to food and/or beverage, cosmetics,
etc. which are used daily. To be specific, it provides antiallergic agent and anti-inflammatory
agent characterized in containing at least one polyphenol selected from strictinin
and methylated derivatives thereof as an effective ingredient; a method for the
addition of an antiallergic agent for oral administration or an anti-inflammatory
agent for oral administration which is characterized in containing at least one
polyphenol selected from strictinin and methylated derivatives thereof as an effective
ingredient to food and/or beverage for prevention, suppression and mitigation of
allergic symptoms or inflammatory symptoms.
