drinking cola etc makes a good diet futile!

Nopedotjpeg

Is your friend a registered dietician? No? Then maybe take what he says with some skepticism and do your own research.

LabRat529

No expert, but I'm pretty sure the stomach is more acidic than soda. I don't think a soda is powerful enough to do that.

Actually, soda is one of the most acid things that we put into our bodies. On the pH Scale diet soda is more acid than battery acid. Reason #1 I stopped drinking soda.

I do drink seltzer though which is carbonated.

This is false. Well... actually, I don't know what the pH of battery acid is... but the pH of our stomachs is pH 2. I've actually measured the pH of diet coke. It was 3.35. Stomach wins.

LabRat529

One question for all you anti-diet cokers out there...

Do you drink alcohol?

Yes? You're putting a poison into your body. You do know that, right?

What's that? You drink it in moderation, so it's not that bad?

What is moderation? A drink every night? Every few nights? On special occasion?

Diet coke (diet mt. dew, diet anything) is not the boogieman. Really. I personally think alcohol is worse... but the occasional consumption of alcohol hasn't killed anyone. Alcohol only becomes a problem when consumed chronically or in high amounts (or if you're stupid enough to get in a car while drunk... or to do some other unsafe activity while your physical and mental abilities are impaired).