The only significant effect I've noticed is some constipation, and that's solved by psyllium fiber supplements (not the ones that also contain a separate laxative, mind you). Taken in capsule form these have no effect on taste or texture of food or drink.

I'm glad side effects are mild for you, but obviously a single anecdote doesn't contradict data from millions of other users.

Yes, of course. I wouldn't want to misrepresent a personal anecdote as anything more than what it is.