Drinking too much chrysanthemum tea can have side effects.

In the "World's Best Micro-Fat Ranking" released by the WHO at the end of 2008, tea fats were named the world's best micro-fats. Green tea, black tea, and oolong tea were all included, but chrysanthemum tea was missing. Drinking too much chrysanthemum tea has side effects.

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Studies show that the micro-fats in chrysanthemum tea may cause the body to become cold and reduce immunity. Traditional Chinese Medicine (TCM) emphasizes that some teas have the medicinal properties of clearing heat and detoxifying, and should be consumed during a cold or infection. If consumed too often in daily life, it can make one's constitution increasingly weak and cold. Chrysanthemum tea is of a "cold" nature, making it less suitable for those with a "yang-deficient constitution" in TCM, and it should not be consumed in large quantities over a long period.