Not only do I believe soda can effect your penis, but drinking excessive amounts of soda is soooo very bad for you.
I’ve been drinking soda everyday since I was about 12; I’m now 18; I weigh seriously nothing short of 350lbs. [Obviously not drinking diet soda]
However fortunately, it wasn’t diet soda since if you ever took the time to look at those conjured cocktails there are all sorts of irritants and neurotoxins. As well as addictive substances similar to smoking, it’s very possible that you basically poisoned your libido into nothing. The excessive caffeine in soda, about 50mg a can, could help you get an erection more frequently but you are typically shorter in terms of lasting despite being excessively hard.
Chances are, the aspartame, [along with other drugs included in diet sodas, splenda, etc] have actually poisoned you. There are law suits pending against diet sodas for this kind of abuse. Granted they warn you on the label, but the lawsuits are still pending.
Fortunately, I’ve only ever drank normal soda, granted I put on the weight, I’d rather only have to lose lbs then realize I’ve basically killed myself from the inside out. That’s pretty rough there, bro.
There is a very high probability that if you stopped drinking diet soda now, and switched to coffee for your caffeine, or even switched to normal soda and trimmed down the amounts that after a few months the negative effects of the substances would cease and you’d probably regain that younger/stronger erection.
This is just one of the great examples of how the American consumer is usually duped. It’s very important before you actually consume something in regiment to make sure it won’t cause this sort of damage. If you are eating excessive amounts of SOY, consider looking into that as well. It’s very important to pick your poisons carefully. =)