Natural drinks such as tea, fruit juice, and herbal water contain many beneficial biological compounds such as polyphenols, flavonoids, and vitamin C.
According to the National Institutes of Health, these compounds have strong antioxidant capabilities, helping to protect cells from damage caused by free radicals - factors directly related to chronic liver and kidney diseases.
Overall studies also show that a diet rich in polyphenols can improve metabolism and reduce inflammation.
Drinking enough water is a fundamental factor in maintaining blood flow and kidney filtration function. According to recommendations from the National Kidney Foundation, water helps increase waste removal and reduce the risk of stone formation.
The US Centers for Disease Control and Prevention (CDC) also recommends limiting sugary drinks and prioritizing filtered water to protect metabolic health.
Green tea is one of the most studied drinks. A review on PubMed shows that catechin compounds can help reduce liver enzymes and improve liver function.
Catechin also has anti-inflammatory effects and protects liver cells from oxidative stress, an important factor in fatty liver disease.
Diluted lemon water contains citric acid - a compound that plays an important role in preventing kidney stones. According to data from the NIH, citrate helps increase mineral solubility and reduce crystallization of stones.
This mechanism is widely applied in nutritional recommendations for kidney stones prevention.
Drinks rich in flavonoids and polyphenols such as natural fruit juice can improve insulin sensitivity and reduce inflammation. WHO also recommends limiting the consumption of sugary drinks to reduce the risk of metabolic disorders and liver disease.
From scientific evidence, you can choose filtered water - the most important foundation; green tea - rich in antioxidants; diluted lemon water - to help prevent stones; natural juice (apple, watermelon, beetroot); coconut water.
These options both help cool down and support liver and kidney function.
Despite the benefits, it is necessary to avoid sugary drinks and industrial soft drinks, not abuse juice, prioritize natural drinks with little processing.