Hong Yongxiang advises kidney friends: adding black coffee with olive oil can protect the kidneys and avoid adding sugary creamer.

2026/09/06 12:22

Hong Yongxiang, director of Hong Yongxiang Clinic, pointed out that choosing sugar-free, creamer-free black coffee, adding an appropriate amount of extra cold-pressed virgin olive oil, and using a milk frother to stir at high speed can reduce unnecessary health burdens; the picture is a situational photo. (Picture taken from freepik)

[Health Channel/Comprehensive Report] Mr. Chen, who is in the third stage of chronic renal failure, drinks coffee with sugar and creamer for breakfast every day. After a period of time, his blood phosphorus becomes high, his kidney function index drops, and he is too scared to touch coffee. Hong Yongxiang, director of Hong Yongxiang Clinic, pointed out that the key to whether coffee damages the kidneys may lie in the "drinking method". It is recommended to follow three principles: choose sugar-free black coffee, avoid creamer and refined sugar, and pair it with an appropriate amount of extra cold-pressed virgin olive oil to reduce unnecessary health burdens.

Coffee may not be harmful to the kidneys, but drinking it in the wrong way may be a problem. Hong Yongxiang shared in a Facebook post that some people have suffered kidney failure after drinking coffee. Can people with kidney problems drink coffee? Taiwanese people drink up to 2.8 billion to more than 4 billion cups of coffee a year, and the average person drinks more than 180 cups every year. Mr. Chen is in the third stage of chronic renal failure. He doesn’t like bitter black coffee. He likes to drink a cup of sweet coffee with creamer for breakfast. However, he developed problems after drinking it for a while.

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The key is what is added to the coffee

Hong Yongxiang explained that Mr. Chen went to the outpatient clinic for a blood test and urine test. In addition to high blood phosphorus levels, he actually had microalbuminuria and his kidney function index declined. He was so frightened that he thought he could never drink coffee again. Do you think drinking coffee every day will damage your kidneys? As long as you add the right "this spoonful", coffee will not damage the kidneys but is also a good helper for kidney protection. If you replace it with "black coffee plus high-quality extra cold-pressed virgin olive oil", the situation will be reversed immediately.

Coffee may not damage the kidneys, but drinking it in the wrong way may cause problems; the picture shows the situation. (Picture taken from freepik)

He further cited a large-scale study published in the American Journal of Kidney Diseases (AJKD) that showed that people who drank a moderate amount of black coffee every day had an 11% to 18% lower risk of developing chronic kidney disease. The reason is that black coffee is rich in powerful antioxidant "chlorogenic acid", which can effectively help fight inflammation of kidney blood vessels. Another authoritative study published in Renal, Hemodialysis and Transplantation (NDT) also found that moderate intake of caffeine can promote the release of nitric oxide from blood vessels and improve renal blood flow, which is very helpful in maintaining kidney function.

Hong Yongxiang mentioned that olive oil contains extremely high concentrations of "olive polyphenols" and monounsaturated fatty acids. These active ingredients can effectively reduce chronic inflammation in the human body and significantly slow down glomerulosclerosis and vascular endothelial damage. When olive oil and black coffee are stirred at high speed in an appropriate proportion, a natural emulsification effect will be triggered to form fine oil particles. The microlipid particles are like tiny protective capsules that can firmly encapsulate fragile chlorogenic acid and olive polyphenols in lipid microbubbles. This structure not only protects the active ingredients from passing through the test of gastric acid, but also continuously delivers antioxidant molecules to damaged blood vessel cells.

Hong Yongxiang advises kidney friends to bid farewell to sugary processed coffee, choose black coffee, stick to sugar-free and creamer-free coffee, and enjoy the purest antioxidant power. Pour 200ml of freshly brewed hot black coffee into a mug. Add 15-20 ml of extra cold pressed virgin olive oil. Use a milk frother to stir at high speed for 30 to 45 seconds until the oil and coffee are completely blended and a layer of dense, golden emulsified milk foam appears on the surface like a latte. A cup of black coffee with olive oil can help young blood vessels and protect the health of precious kidneys.