Can patients with kidney disease eat Houttuynia cordata?

Whether patients with kidney disease can consume Houttuynia cordata should be determined based on the severity of their condition. Those with mild cases may consume it in moderation, while those with severe cases should avoid it. Detailed explanations are as follows: For patients in the early stages of kidney disease, where kidney function is only mildly impaired and some metabolic and detoxification capacity remains, Houttuynia cordata—which is rich in volatile oils, flavonoids, and other components—may offer benefits. It has properties that clear heat and toxins, reduce inflammation, and inhibit bacterial growth. Moderate consumption may help alleviate inflammatory responses without placing excessive strain on the kidneys. As long as intake remains within reasonable limits, it may assist patients with mild conditions in maintaining bodily functions to a certain extent. However, in severe cases where kidney function has significantly declined and excretory and metabolic capabilities are greatly reduced, components such as aristolochic acid found in Houttuynia cordata may pose risks. After absorption by the body, these components cannot be effectively metabolized or excreted by the damaged kidneys, leading to accumulation in the body. This may further worsen kidney damage and even potentially trigger serious consequences such as renal failure. Therefore, to protect the already compromised kidneys, patients with severe kidney disease should avoid consuming Houttuynia cordata. Regardless of disease severity, all kidney disease patients should fully consult with their physician before consuming Houttuynia cordata, strictly follow medical advice, and closely monitor their body's response. Consumption should be stopped immediately if any adverse reactions occur.