Question

which beverage produces the most gas in your stomach, root beer, water and apple juice?

Answer 1

Root beer, because it is carbonated :)

Answer 2

The carbonation helps create bubble in your stomach which ultimately creates gas.

Answer 3

do you know any websites that I can find research on?

Answer 4

http://www.livestrong.com/article/532892-can-drinking-diet-soda-give-you-gas/
http://www.healthline.com/health/foods-that-cause-gas#9

Answer 5

These might help

Answer 6

Both include snippets about soda and gas.

Answer 7

Hope that helps you :)