Just one fizzy drink per day raises the danger of deadly kidney disease.
People who guzzle beverages such as Coca-Cola and Fanta regularly had a greater chance of suffering from the chronic condition compared to those who don't drink any, according to a new study in South Korea.
Boffins have recommended that people swap fizzy drinks for water or fruit juice for the sake of their health.
Dr. Ga Young Heo, of Yonsei University College of Medicine in Seoul, said: "One serving per day of any sweetened beverages was associated with increased risk of incident chronic kidney disease.
"Substituting with natural juices or water was associated with reduced risk of incident chronic kidney disease.
"These results suggest that healthy beverage consumption habits may be important for preventing chronic kidney disease."