I’m talking about the WHO’s recommendations in their capacity as an advisory body on public health following their analysis of IARC research, not the research itself. Many of the studies do make substantial corrections for the participant candidates. I don’t think that’s necessarily translated through to the recommendations, which should be given in the context of existing public health outcomes.

The WHO agrees that two thirds of adults in countries like USA and Aus are overweight. They agree that obesity is an extreme risk factor for cancer. They agree that non-nutritive sweeteners confer at least a short term benefit to weight loss. They agree that the cancer risk associated with those products is comparatively insignificant. So they should be careful not to potentially mislead media and the the public about that specific causal relationship. It has directly resulted in the misleading headline of this post.