A friend with an unreliable chocolate allergy turned out to have a soy allergy that the soy lecithin triggered (you can find alternatives with sunflower lecithin instead.) Once they figured that out, as far as they were concerned soy was a biohazard :-)
Seriously, a lot of our developed alergies could just be perfectly natural reactions to the amount of chemicals and other garbage ... everywhere, these days.-
While that's despicable, likely biased researches aren't the right way to fix that. Same apply for alleged high arsenic content in rice and seaweed, high mercury content in fish, etc.
That's just bonkers.-
PS. Lead too, apparently ...