The World Health Organization is on the verge of declaring the aspartame sweetener in Diet Coke a possible carcinogen, Reuters reported Thursday.
Aspartame is also linked in some studies to weight gain, GI disorders, mental health issues and more:
According to some studies, aspartame and other artificial sweeteners can lead to weight gain instead of weight loss 12. Aspartame has been linked to increased appetite, diabetes, metabolic derangement and obesity-related diseases 2.
One study showed that aspartame causes greater weight gain than a diet with the same calorie intake but no aspartame 1. Another study found that even acceptable daily intakes of aspartame might make you hungrier and lead to weight gain 3.
...some research suggests an association between aspartame intake and metabolic damage to the central nervous system (CNS), such as changes in enzyme and neurotransmitter activities 2. Aspartame acts as a chemical stressor by elevating plasma cortisol levels and causing the production of excess free radicals. High cortisol levels and excess free radicals may increase the brain’s vulnerability to oxidative stress which may have adverse effects on neurobehavioral health 3.
There is also some evidence that high-aspartame consumption may lead to weaker spatial orientation, irritability, depression, and other neurobehavioral conditions 14. However, these studies are limited in scope and further research is needed to determine the long-term effects of aspartame on human health.
Worth researching more, especially if you eat/drink anything with this stuff - and it's in a lot of food products.
Obesity is one of the leading preventable causes of cancer. Along with tobacco, alcohol, sun exposure, and red meat consumption. Aspartame is not a major cause of cancer in humans. If it helps you lose weight, then you're improving your cancer risk.
If it helps you lose weight, sure, but I think there is more going on when you realize cancer risk down but mortality up...
Mortality
High consumption of artificially sweetened beverages was associated with a 12% higher risk of all-cause mortality and a 23% higher risk of cardiovascular disease (CVD) mortality in a 2021 meta-analysis.[64] A 2020 meta-analysis found a similar result, with the highest consuming group having a 13% higher risk of all-cause mortality and a 25% higher risk of CVD mortality.[65]
Zhang YB, Jiang YW, Chen JX, Xia PF, Pan A (March 2021). "Association of Consumption of Sugar-Sweetened Beverages or Artificially Sweetened Beverages with Mortality: A Systematic Review and Dose-Response Meta-Analysis of Prospective Cohort Studies". Advances in Nutrition. 12 (2): 374–383. doi:10.1093/advances/nmaa110. PMC 8009739. PMID 33786594.
I'm entertained by this sentence from your source (great source, by the way): "No significant associations were found for cancer mortality." Lol
Also from your source, though, to dig deeper past the study title:
"Of note, participants in the highest levels of ASB intake were more likely to be overweight/obese, hypertensive, and hypercholesterolemic in most studies (8, 10, 11, 17, 28), and thus reverse causation was possible" meaning people already experiencing health-damaging overweight/obesity are also more likely to be replacing sugar-sweetened beverages (SSB) with artificially-sweetened beverages (ASB) which confounds the result that higher ASB intake is associated with higher all cause mortality. It may simply be that people who already had high mortality risk from their weight were also more likely to be consuming large amounts of ASB.
"Meta-analyses of randomized controlled trials found that low-calorie sweeteners modestly but significantly reduced body weight, BMI, fat mass, and waist circumference (23), but had no effects on blood glucose and blood lipids compared with saccharides (39)"
"Although biological mechanisms remain inconclusive, some studies indicated detrimental effects of low-calorie sweeteners on the regulatory mechanisms of appetite and satiety, release of gastrointestinal hormones, gastric motility, and balance and diversity of gut microbiota, which may further increase energy intake and disrupt blood glucose homeostasis (40). Taken together, ASBs might be optional alternatives for SSBs only when they are consumed in small quantities for weight management, and the long-term adverse associations of high amounts of ASBs with cardiometabolic diseases and mortality should be considered"
"Based on current evidence, SSB intakes should be avoided, and if ASBs are considered as optional alternatives for SSBs, they should be consumed in small quantities (i.e., <1.5 servings/d). Nevertheless, further high-quality studies are still warranted, particularly on the long-term impact of ASB intakes, because of limited studies and low-to-moderate quality of the current evidence."
So overall, a little more nuanced and not quite the knock-out punch the study title might suggest.