A comprehensive analysis of nine studies, led by Dr. Karim Khaled and involving Dr. Chloe Casey, suggests a significant link between high consumption of sugary drinks and increased anxiety in teenagers. The research, spanning studies from 2000 to 2025, found that adolescents who frequently consume beverages like cola, energy drinks, and sweet juices report more anxiety symptoms, with their risk of developing an anxiety disorder being 34 percent higher. While the studies are observational and do not prove causation, researchers emphasize the importance of identifying modifiable lifestyle factors, such as diet, to potentially mitigate the rising rates of anxiety disorders among young people, noting that sugary drinks offer energy but lack nutrients and can cause blood sugar fluctuations and caffeine-induced nervousness.