It considers all possible health impacts, including cancer. One of its main roles is to evaluate the safety of food additives. JECFA is an international expert committee run jointly by the Food and Agriculture Organization (FAO) and the WHO. Joint FAO/WHO Expert Committee on Food Additives (JECFA) To learn more about the IARC classifications, see Determining if Something Is a Carcinogen and Known and Probable Human Carcinogens. The Group 2B classification is the third highest out of 4 levels, and it is generally used either when there is limited, but not convincing, evidence for cancer in humans, or when there is convincing evidence for cancer in lab animals, but not both. It’s important to know that IARC classifications are based on the strength of the evidence of whether something can cause cancer in humans, not how likely it is to cause cancer. IARC also notes there is limited evidence for cancer in lab animals and limited evidence related to possible mechanisms for it causing cancer. IARC classifies aspartame as “possibly carcinogenic to humans” (Group 2B), based on limited evidence it might cause cancer (specifically liver cancer) in people. One of its major roles is to identify causes of cancer. IARC is the cancer research agency of the WHO. World Health Organization (WHO) International Agency for Research on Cancer (IARC) In general, the American Cancer Society does not determine if something causes cancer (that is, if it is a carcinogen), but we do look to other respected organizations for help with this. Some studies have suggested a possible link, but others have not. The results of epidemiologic studies (studies of groups of people) of possible links between aspartame and cancer (including blood-related cancers) have not been consistent for most cancers.
However, these studies had some limitations that made their results hard to interpret.
Some of the concerns about cancer stem from the results of studies in lab rats published by a group of Italian researchers in the late 2000s, which suggested aspartame might increase the risk of some blood-related cancers (leukemias and lymphomas) and other types of cancer. Does aspartame cause cancer?Ĭoncerns about aspartame causing a number of health problems, including cancer, have been around for many years. It can also be found as a flavoring in some medicines, chewing gums, and toothpastes. It is used in many foods and beverages because it is much sweeter than sugar, so much less of it can be used to give the same level of sweetness.Īspartame is commonly used as a tabletop sweetener, as a sweetener in prepared foods and beverages, and in recipes that don’t require too much heating (since heat breaks down aspartame). Aspartame is an artificial sweetener has been in use in the United States since the early 1980s.
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