I became aware that I could have a parasite and worse yet a Tapeworm after eating some very spicy food.
I had ordered some green curry, and though I asked for mild, it was SPICY - but very very delicious - the best I ever had - so delicious I ate half before I had to stop because it made my lips burn.
The next day I was humored that my BM was green and as I was flushing I noticed something bright white in the center sticking out. It was too late to examine it. I suppose it could have been a mushroom, but this would not have been so white.
Of course this led me to obsessively googleing and I'm on day 4 of a natural cleanse. Some die-off symptoms and weird emotional swings, so I think I will now see my doctor.
So yes it seems that super spicy food can have some effect.