What is the best way Dwayne could respond to this new information?

Dwyane personally believes that limiting access to soda can improve children's health. If two studies that this not be true, he can adjust his claim differently, stating how sugar intake and caffeine is not good for young people.

Also, he can incorporate it as a suggestion along with providing more opportunities for exercise and healthier lunch meals for kids.

He can also do some of his own research and try to understand studies and claims made. Many such studies are funded by corporations and it is easy to spot issues if researched properly.