The International Agency for Research on Cancer (IARC), which is the specialised cancer agency of the World Health Organisation, has declared aspartame may be a possible carcinogenic hazard to humans.

Another branch of the WHO, the Joint WHO and Food and Agriculture Organisation’s Expert Committee on Food Additives has assessed the risk and developed recommendations on how much aspartame is safe to consume. They have recommended the acceptable daily intake be 0 to 40mg per kilo of body weight, as we currently have in Australia.