Don't eat carrots and oranges together: it's easy to eat both. After radish is ingested into human body, it can quickly produce a substance called thiocyanate. Flavonoids in Auricularia auricula are transformed into hydroxybenzoic acid and ferulic acid in the intestine, and the interaction with thiocyanate is strengthened to thiocyanate, which inhibits thyroid gland, thus inducing or leading to goiter.