What harm does benzoic acid do to human body?

After benzoic acid enters the body, most of it reacts with glycine within 9~ 15 hours to synthesize hippuric acid, which is excreted with urine, and the rest is combined with glucuronic acid to detoxify. But due to its toxicity, sodium benzoate has been gradually replaced by sodium sorbate.

Adverse reactions: allergic reactions such as asthma, urticaria and angioedema may occur after oral administration. Contact dermatitis may occur after external use.