Yes blue Gatorade can make your poop turn green.
Although it would seem like the blue Gatorade would turn your poop blue it actually turns your poop green.
Whenever I drink blue Gatorade my poop always turns green and I asked my doctor about that and the doctor said it was normal due to the dye that is in the blue Gatorade that makes it blue.
It mixes in with the waste products in our intestines and leads to green poop.
Other blue dyed drinks can also cause your poop to turn green which is normal.
If your poop color only changes to green when you drink the blue Gatorade then that's the cause but if the poop stays green and doesn't change back to it's normal color then you could have a health issue that you need to let your doctor know about.
However if it just turns green when drinking the blue Gatorade then there's nothing to worry about.