Medical experts have cautioned Nigerians to exercise moderation in the consumption of catfish, a popular delicacy across the country, over potential health risks linked to the kidneys.
Catfish, though highly nutritious and rich in protein, omega-3 fatty acids, and essential vitamins, has been found to contain a high level of polyunsaturated fat, which, when consumed excessively, may increase the risk of health complications. Health practitioners warn that the regular intake of large portions of catfish especially when prepared with heavy seasoning and oil could contribute to elevated cholesterol levels, high blood pressure, and ultimately strain the kidneys.
According to nutritionists, the kidney plays a vital role in filtering waste and regulating blood pressure. Diets high in unhealthy fats and sodium can compromise these functions, potentially leading to chronic kidney disease (CKD). “Fish like catfish are not inherently harmful, but the way they are consumed and the quantity people eat regularly matters. Overconsumption, coupled with poor dietary balance, may put unnecessary pressure on the kidneys,” said Dr. Tunde Adebayo, a nephrologist at University College Hospital, Ibadan.
Adebayo added that people already living with diabetes or hypertension two leading causes of kidney failure must be especially careful. “When such individuals take too much catfish, fried or pepper-soup style with excessive salt, it worsens their kidney vulnerability,” he noted.
Food safety experts have also raised concerns about the use of growth enhancers in fish farms. Some catfish farmers reportedly use substances that may leave residues in the fish, which over time, could affect kidney health in consumers.
Despite these concerns, experts clarified that moderate consumption of catfish remains safe and beneficial. They recommend pairing the fish with vegetables, reducing salt intake, and avoiding excessive frying or oily preparation.
Public health advocates are now urging increased awareness campaigns on healthy eating, stressing that lifestyle and diet remain key to preventing kidney disease, which affects millions of Nigerians annually.
