Is consuming excessive amounts of alum harmful to the body?

Nov 22, 2021 Source: Cainiu Health
Disease description:

I often add alum when frying youtiao (Chinese crullers). Is consuming too much alum harmful to the body?

Doctor's answer (1)
Dr. Wang Shengqiang
Excessive consumption of alum is harmful to the body. Occasional small intake generally does not cause noticeable harm; however, long-term overconsumption may impair physical growth and development, affect cognitive function, and potentially increase the risk of Alzheimer’s disease. If alum is required for medical use, consult a qualified physician first and strictly adhere to the prescribed dosage.