Normally I wouldn't ask this, but having seen the effects of Alzheimer's I must ask: is there any evidence that taking creatine will harm my brain?

Let's be real: I take a lot of edibles. I smoke sometimes on a hike. Every once in a while I get a Guiness and a gyro. My health is by no means perfect, and if I'm willing to take in literal poison (yes, alchohol is that dangerous that I say such things even about my precious Guiness).

Anyways, for years I've been mostly skeptical of vitamins. I've heard a megadose of Vitamin C can shorten the symptoms of a cold, but a "megadose" is relatively small enough that just some OJ can do that, no need for pills.

But if I'm not giving up my Guiness and gyros, I probably should be willing to be more flexible about my "no vitamins or weird supplements rule".

So TL;DR: Let's flip this around: What are the risks of creatine, presuming a safe supply chain? (It's legal where I am as far as I know, which I'm a fan of for most things since then you can get a receipt and there will be some authority that investigates if you're unlucky to get a "bad batch".)

There are scattered reports from people who take it and feel worse. Some don’t notice until they run out or forget to take it for a few days and realize their mood improves.

This happens with a lot of popular supplements. I don’t know how common it is, but it’s a thing that happens. There are proponents of every supplement who will tell you it’s perfectly safe and any negative effect is due to impurities or your imagination, but there are a lot of reports from people who believe it’s helping until they stop, and are surprised that they feel better without.

Creatine is one of the most studied supplements in fitness and i don't think there ever was evidence it was harmful.

Then again supplements mostly create expensive pee.

if you're worried about Alzheimers why do you take Marijuana? that would be the first thing to do in prevention

Because there isn't a causative link in any literature available anywhere? (If there is pls cite). That's like saying "caffeine affects your brain you should stop taking caffeine"

Why would it be? There's no known link at all.

No sure about brain harm. But I used creatine for a few months and I got cramps in an intensity like I never experienced before. I then decided it was not worth it for a few watts of cycling FTP increase. So I would not consider it harmless for everbody, but this sideeffect seems pretty rare.

Could it have been dehydration?