They can lead to heart disease
There’s a thing called the metabolic syndrome, and it causes most modern heart diseases. Although the metabolic syndrome is a complex condition, it’s strongly linked with high blood pressure, high blood sugar levels, and cholesterol, all caused by soft drink and soda consumption.
Sodas being a predecessor for the metabolic syndrome and the syndrome being a predecessor for heart diseases, it’s easy to blame the fizzy drinks with the country’s number one killer.