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Can you drink cola without adverse effects?

Because I can. And coffee gives me issues after a week or two.

Therefore something seems wrong about giving caffeine all the blame.

I don't drink soft drinks generally, and certainly not in those quantities, but I vaguely recall feeling anxious after drinking cola before.

> Therefore something seems wrong about giving caffeine all the blame.

Possibly, but in this case, my primary comparison is between coffee and coffee with l-theanine and that one difference by itself produces a very noticeable difference in effect. I do not know what else in coffee could be producing jitters other than the caffeine. Or what in the cola could perhaps be inhibiting the effects of caffeine.

> And coffee gives me issues after a week or two.

Have you tried drinking an equivalent amount of cola (in terms of caffeine dosage) every day for a week or two?

Yes, I think so. I drank a lot of (diet) cola at some point, like 1 gallon a day. Never got any issues similar to the ones I got from coffee.

A gallon of diet coke has less caffeine than one Starbucks venti drip coffee (~380mg vs ~400mg).

How much coffee do/did you drink per day?

Like 3-5 regular cups a day (not Starbucks). Then after two weeks even 1 cup became too much. Switching to a gallon of cola then didn't cause any problems.

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