From that article, it’s clear their funded study didn’t back up their priors and they ultimately cut funding and discredited the research.

From the link:

"If this was an animal study, they’d have thrown them out,” he says. “Euthanized them and started over.”

Top of my head:

* Carbon dioxide - albeit just to get rid of, but it does make it :D

* Hydrochloric acid

* Hydrogen peroxide

* Ammonia

* Formaldehyde

Then of course the human body creates pyrogens to fight off illness, even if they literally cook your sugar creating brain :D