Kidneys work continuously, day and night, producing approximately 150-180 liters of filtrate daily to remove waste, balance electrolytes, regulate blood pressure, participate in red blood cell production, and maintain bone health.

Adequate hydration is a key factor for efficient kidney function. While plain water remains the preferred choice, green tea can offer additional antioxidant compounds. However, the impact of this beverage on kidneys can vary depending on the amount consumed and an individual's health status.

Supports hydration

According to Verywell Health, kidneys require sufficient water to perform their functions of blood filtration, waste elimination, and electrolyte balance. Green tea can supplement a portion of the body's daily fluid needs, similar to plain water or some other herbal teas. However, plain water remains the primary source of fluid for the body, while green tea should be considered only a supplement.

Green tea is rich in antioxidants. Photo: *Bao Bao*

Provides antioxidants to protect kidneys

Green tea can be a component of an overall healthy diet that supports kidney health and function. This beverage contains many catechins, especially epigallocatechin gallate (EGCG), a potent antioxidant. This compound may help reduce oxidative stress and inflammation, factors linked to kidney tissue damage in many chronic diseases.

May increase kidney stone risk if overused

According to Times of India, tea and some leaf-derived beverages contain oxalate, a substance that can contribute to the formation of calcium oxalate kidney stones if it accumulates in the body. Consuming too much tea over a long period, especially when replacing plain water, can increase this risk for sensitive individuals or those with a history of kidney stones.

However, experts suggest that drinking green tea in moderation, approximately mot-hai diluted cups daily, is generally considered safe and may help reduce the risk of kidney stones. Nevertheless, if consumption exceeds ba cups daily, if the tea is too strong, or if there is a history of kidney stones, the risk of stone formation may increase. For optimal kidney health, avoid brewing tea too strong, do not steep it for too long, and drink enough plain water every day.

According to Health, the benefits of green tea largely depend on the dosage. Beyond the risk of kidney stones in sensitive individuals, excessive consumption of caffeine in tea can cause insomnia, digestive discomfort, and affect the absorption of certain micronutrients like iron.

Eatingwell indicates that the timing and method of green tea consumption also influence the body's tolerance. Drinking tea on an empty stomach or too strong can cause discomfort for some, while consuming it after meals is often more comfortable.

Bao Bao (Compiled)