Doctors would need to investigate the child's complete medical history.
Was the child born with a kidney abnormality?
Was there a genetic condition?
Had the child experienced severe dehydration?
Were there repeated infections?
Was the child taking medications that could affect kidney function?
Were there abnormalities in blood pressure, blood sugar, or electrolytes?
Were other dietary or environmental factors involved?
These questions matter because kidney disease can have numerous causes.
At the same time, this does not mean parents should ignore dietary habits.
Regularly replacing water or nutritious drinks with highly sweetened beverages can contribute to an unhealthy overall diet. Excessive caffeine can also be inappropriate for young children. The safest general approach is to prioritize water and nutritionally appropriate beverages while limiting drinks that contain large amounts of added sugar or stimulants.
Parents should also remember that product labels can change.
Serving sizes can be surprisingly small compared with the amount a child actually consumes, and caffeine or sugar content can vary considerably between products.
Rather than focusing only on one viral story, families can use the situation as an opportunity to examine their children's everyday drinking habits.
How many sweetened drinks are consumed each day?
How much plain water does the child drink?
Are caffeinated products involved?
Are beverages replacing meals or nutritious foods?
These questions provide much more useful information than simply labeling one drink as the cause of a complex medical condition.