Popular wellness claims promote corn silk, or corn hair, as a kidney and urinary remedy, but Dr Urmila Anandh, HOD, Nephrology, Amrita Hospital, Faridabad, says the evidence falls short. While corn silk contains flavonoids with antioxidant activity explored in lab and animal studies, a human study of 38 volunteers found no significant change in urine output or electrolyte excretion after a week, and a 2019 review of five trials on hypertension found possible blood-pressure benefits only as an add-on, with poor overall methodology. Dr Anandh stresses that passing more urine doesn’t equal better kidney function, which depends on filtration and electrolyte balance, and warns that homemade preparations lack a standard dose and may interact with medicines, especially for those with chronic kidney disease. Symptoms like burning urination, fever or blood in urine need medical evaluation, and she cautions against letting herbal remedies delay proper diagnosis or treatment.
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