Food therapy is not a cure for the disease, but only an adjunctive treatment for the disease, not a cure. Foamy urine is a subjective symptom that can be caused by physiological or pathological reasons. 1. Physiological reasons: some normal people consume too much fatty food or drink too little water, the urine is concentrated, the content of amphiphilic substances such as bile salts in the urine increases, and foamy urine will also be formed, this situation is not a physical abnormality. Keep a normal diet and drink plenty of water. 2. Pathological causes: abnormal elevation of protein or peptide in the urine can also be manifested as foamy urine. A variety of diseases such as urinary tract infection, glomerular disease, nephritis, etc. can be manifested as foamy urine. In this case, dietary therapy is not the right treatment and will not solve the problem. If you suspect that the foamy urine is caused by a disease, you need to go to the nephrology department for consultation, urine routine or 24-hour urine protein quantification and other tests, and a comprehensive evaluation by a professional physician to determine the cause of the disease and treat the symptoms.