Why does the caffeine in coffee make us need to use the restroom, but the caffeine in soda doesn’t, despite being around the same amount of stimulant?

Question

Edit: I do not usually drink colas, I prefer clear sodas.

Mountain Dew is my favorite. When I think of having a Mountain Dew, I usually think of the 20 oz bottles. I don’t keep soda cans in the fridge.

When I have coffee I usually have the normal 12 oz over ice.

12 oz of coffee is more or less 100 mgs of caffeine. 20 oz of Mountain Dew is more or less 100 mgs of caffeine. This is why I said, “about the same amount of caffiene,” in my title.

I understand the confusion, and appreciate y’all caring enough to try and correct me in the comments. Hopefully this cleared some things up!

In: 127

Answer 1

I have a follow up question if anyone knows the answer?

If coffee has >140 mg of caffeine in 12oz cup and coffee is socially acceptable.

Why is a sugar free energy drink at 160 mg of caffeine treated like it’s the devils piss ?