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139

Aspartame: Sweetener used in Diet Coke possibly causes cancer, WHO set to declare (ground.news)

submitted 1 year ago* (last edited 1 year ago) by YellowtoOrange@lemmy.world to c/world@lemmy.world

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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.

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[–] nymwit@kbin.social 10 points 1 year ago (1 children)

I sort of cringe (more of a nose wrinkle really) at OP's "it's known in some circles to be bad" You see beliefs and correlative evidence constantly misrepresented as proof and truth in food and medical science (reporting and discussion).

I get it. The body is a hugely complicated system, it's hard to figure these things out. What does even figuring them out mean with the amount of complicating factors of this affects that which affects this which causes this.

I'm open to the idea that lobbying and such means Aspartame (and other industrial food products) has really been pushed through.

It's also obviously been studied quite a bit and it's hard to believe all the studies saying it's safe at recommended levels are bunk or fraudulent.

This news was on another instance where the discussion included that the IARC carcinogen classifications do not take into account exposure/dosage. A whole bunch of things can be carcinogenic depending on exposure. Haven't we all read how the rats that got cancer from saccharine had epic doses? It was just magnitudes more than a human would consume.

If an observational study won't cut it (I see you, @xthedeerlordx, and appreciate your comment and explanation), how does one prove the causation? Don't you need randomized controlled trials which would be extremely onerous controlling for various factors and basically making the (ideally large number of) participants live in a lab for whatever amount of time the study takes to really prove causation? I'd genuinely like to know. It seems like for a lot of things correlation after correlation after correlation is the best we're going to get.

[+] YellowtoOrange@lemmy.world -6 points 1 year ago

It's going to be difficult to fund a large enough RCT to find a stat signif effect - it would be very expensive to follow people for 20-40 years and keep them in a study (10 000 people?). Similar to supplement studies - they may be effective, however big pharma won't pay for RCTs for products that are already on the market and with little profit margin.

Unfortuantely, it's not all 100% science - politics has a large hand to play here.

As I wrote elsewhere, there was one review showing potential biochemical and physiological mechanisms. It doesn't prove anything, however due to the amount consumed, it is worth investigating further and keeping an open mind:

https://pubmed.ncbi.nlm.nih.gov/28938797/ https://academic.oup.com/nutritionreviews/article/75/9/718/4101228

CONCLUSION

Current scientific knowledge about the safety of aspartame, as reviewed here, is based mostly on animal studies. These studies suggest that aspartame, even at recommended safe dosages, might not be safe. Several of these studies (in vitro as well as in vivo) that investigated both higher and safe dosages indicate that aspartame or its metabolites cause an oxidant/antioxidant imbalance, induce oxidative stress, and damage membrane integrity (lipid, protein, and nucleic acid), possibly affecting most cells and tissues. Aspartame is directly involved in the development of oxidative stress, which is a hallmark of systemic inflammation (Figure 3). Several animal studies have also reported a deleterious effect of aspartame exposure on body weight, adiposity, and/or glucose tolerance and insulin levels. These are summarized in a 2016 review by Fowler.125 Thus, there is a need for additional detailed human studies and comprehensive characterizations of the physiological processes affected by aspartame. This is of particular importance, as diabetic and other individuals with gut dysbiosis may already be at increased risk of systemic inflammation because of the inflammatory nature of their conditions. Data reviewed in this paper suggest that aspartame use could not only exacerbate existing systemic inflammation but also cause inflammation if healthy individuals ingest it on a regular basis.