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

>but the caffeine in soda doesn’t, despite being around the same amount of stimulant

What kind of soda are you drinking that has the same amount of caffeine as coffee?

There’s 34mg caffeine in 12oz coca-cola (and also similar in pepsi) and >140mg caffeine in 12oz coffee.

I’m sure if you drank 50oz of coke (approximately 140mg of caffeine), you’ll need to use the restroom also.

I’m not sure if you mean specifically coke by “soda” – other fizzy drinks like sprite has 0 caffeine.