Nah, shrooms are.
They're completely natural, they last the perfect amount of time (3-4 hours), they don't give you any trouble sleeping afterwards nor do you feel like shit the next day, and best of all, if you pick them yourself they cost nothing to eat and you get the fun of finding them out in the wild.
Them being natural is irrelevant.
I don't feel like shit after taking LSD.
And fuck trying to find mushrooms growing in the wild. I would rather pay for them.