If you experience adverse effects of T2DM like neuropathy, you may find that symptoms worsen after the intake of a diet coke with aspartame. But if you are not on the edge yet, you will feel nothing extraordinal.
There is a cause and effect, and they always have a relation. If aspartame worsens insulin sensitivity by increasing insulin resistance [1] then this will eventually lead to neuropathy [2]. This is a simple logical chain to follow, but I understand that not everybody is made for it.
But the real drama occurs when a person finally hits T2DM and starts to develop dementia. Only then they will start to learn, listen and study medicine (maybe), but for the most part it is already too late. See, in this condition, the brain suffers from tissue hypoxia, so the individual has dim chances of properly doing their medical homework, if any work at all. And they won't get a proper help at the usual clinic outside of palliative care, unless they go to a place specializing in neuroendocrinology which is often a cost-prohibiting option not available to everyone.
I know, the link between T2DM and dementia may come as surprise to you as well, so here is a citation [3]. "But it's only affecting older people, I'm fine!" - wrong. It affects anyone but the incidence rate is indeed correlated with age.
But before all that happens, one can enjoy one more cup of a thirst quincher with aspartame, of course! All those mad naysayers suck, you know.
