this is about the IARC not the FDA. the IARC (international agency for research on cancer) is part of the WHO (world health organization) and not a food safety agency. they classify "agents" (chemical, physical, or biological entities or exposure circumstances) based on how likely they are to cause cancer:
Group 1: Carcinogenic to humans (126 agents)
Group 2A: Probably carcinogenic to humans (94 agents)
Group 2B: Possibly carcinogenic to humans (322 agents)
Group 3: Not classifiable as to its carcinogenicity to humans
this new classification of aspartame as 2B "possibly carcinogenic to humans" is the result of a review of available studies, and mostly intended to encourage additional research. it is not aimed at consumers/the public and it does not take dosage or frequency into account.
for context: apart from aspartame, group 2B includes things like "aloe vera, whole leaf extract", "carpentry", "magnetic fields", and "traditional asian pickled vegetables"
"occupation as a hairdresser or barber", "very hot beverages at above 65°C" (149°F), and "consumption of red meat" are all classified as 2A
and Group 1 includes "alcoholic beverages", "epstein-barr virus", "salted fish", "processed meat", and being a painter.
anyway. this is fearmongering and disinformation. stop using memes for news and dont reblog "news" posts without sources.