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Study reveals cognitive decline linked to drinking Diet Coke daily
MSN - The Street ^ | August 07, 2026 | Colette Bennett

Posted on 08/07/2026 5:26:02 AM PDT by Red Badger

Whether you work in an office or from home, you're likely familiar with the after-lunch slump that makes you reach for another coffee or a soda.

If you've front-loaded a lot of caffeine in the morning, this is typically the time you would feel a crash. Eating a large meal or not drinking enough water can also lead to that sluggish feeling.

There's nothing wrong with reaching for a pick-me-up at this time of day, though a short walk or refilling your water bottle is the healthiest option. But if your personal favorite afternoon treat is a Diet Coke, an updated study from the peer-reviewed journal Neurology presents some new data you're going to want to see.

The study's newest findings present a concerning link between low- and no-calorie sweeteners (LNCS) used in diet drinks and accelerated cognitive decline.

In a pool of 12,772 Brazilian participants tested over eight years, people younger than age 60 who consumed LNCS regularly showed a faster decline in verbal fluency and global cognition. The studied LNCS included aspartame, saccharin, acesulfame k, erythritol, xylitol, sorbitol, and tagatose.

Six of the seven sweeteners showed a link to cognitive decline, with tagatose being the one that did not.

People below age 60 who consume artificial sweeteners regularly showed a faster decline in verbal fluency and global cognition.

Participants were tested at the beginning, middle, and end of the study to track changes and then separated into three groups based on consumption levels.

The highest consumption level group showed a cognitive decline 62% faster than that of the lowest group. However, those over 60 did not show an association between LNCS and cognitive decline.

(Excerpt) Read more at msn.com ...


TOPICS: Business/Economy; Food; Health/Medicine; Society
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To: Red Badger

I over 60, I no recline. Wait I do recline.


101 posted on 08/07/2026 7:51:09 AM PDT by DannyTN
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To: Blennos

I went Cold Turkey in January on all processed foods, all refined sugar, all dairy and all red meat (actually all meat except fish). I eat tons of vegetables and fruits. I lost 35 pounds since January and went off my blood pressure meds. My A1C is normalized, my cholesterol is down 50 points and well into normal range and my kidney function has gone from stage 3 kidney failure into normal. I have not felt this good since high school.


102 posted on 08/07/2026 7:51:41 AM PDT by P-Marlowe
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To: Dr. Sivana

Nothing technical about it xylitol and sorbitol are naturally occurring and can be found in many fruits. But, people do have sensitivities to lots of natural things. Both actually act as natural laxatives when consumed in, for instance, prunes.


103 posted on 08/07/2026 7:52:25 AM PDT by Merrick (It's a car - that runs on water, man!)
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To: Red Badger

So obvious regarding intent as to be comical.


104 posted on 08/07/2026 7:53:00 AM PDT by madison10
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To: Paul R.

I didn’t say I never drink Diet Coke

The headline refers to a daily use


105 posted on 08/07/2026 7:54:06 AM PDT by stanne
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To: butlerweave
Is this to attack Trump ?

High probability.

106 posted on 08/07/2026 7:57:16 AM PDT by libertylover (The HBM (Has Been Media) is almost all AGENDA-DRIVEN and HATE-DRIVEN, not-truth driven)
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To: Red Badger

well if the cognitive decline gets to be too much, maybe ill go into politics


107 posted on 08/07/2026 8:06:48 AM PDT by wafflehouse ("there was a third possibility that we hadn't even counted upon" -Alice's Restaurant Massacree)
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To: Dr. Sivana

Fresca is a grapefruit flavored drink. Not good with some blood pressure meds...............


108 posted on 08/07/2026 8:16:18 AM PDT by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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To: All
Fear porn once again.

I've been drinking Diet Coke and Diet Dr. Pepper since 1989.

I'm 63 with very little health issues.... just the kind that go with age.

It's kinda like the vaping fear porn. I've been smoke-free for 13 years and have been vaping instead. I build my own coils and wick the coils myself.

I'm still here and not having the awful problems the nanny-flakes say I'm supposed to have.

109 posted on 08/07/2026 8:17:06 AM PDT by Negan
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To: Red Badger

I seldom touch anything with artificial sweeteners, but this article is based on a study which even the authors say that additional studies are required before declaring artificial sweeteners a direct cause of dementia or cognitive aging.

Here is a response from Gemini AI that helps to clarify:

Key Scientific Caveats (Correlation vs. Causation)
While the scientific findings are concerning and warrant further investigation, observational nutrition studies come with inherent limitations:

A. Observational Data Cannot Prove Causation
The study shows an association (correlation), not direct proof that diet drinks directly damage brain tissue.

B. Risk of “Reverse Causality” & Confounding Factors
People who drink diet soda or consume low-calorie sweeteners often do so because they are managing conditions like obesity, insulin resistance, metabolic syndrome, or pre-diabetes—all of which are independent, well-established risk factors for cognitive decline and midlife brain aging. Although researchers adjusted for diabetes and demographic variables, residual confounding (unmeasured lifestyle habits, diet quality overall, or health status) can influence results.

C. Self-Reported Dietary Data
Dietary intake was measured at baseline using self-reported food questionnaires, which can introduce recall bias or miss changes in dietary habits over the subsequent eight years.

D. What the Researchers Recommend
The study authors themselves noted that these findings show a strong signal, but emphasized that replication studies (and imaging/MRI studies to observe physical brain changes) are required before declaring artificial sweeteners a direct cause of dementia or cognitive aging.


110 posted on 08/07/2026 8:17:26 AM PDT by fireman15
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To: GingisK

I should have said I drink less than 5 cans per week. But, yes, sometimes I don’t finish a whole can before it goes flat. I stopped drinking soda altogether for several years.


111 posted on 08/07/2026 8:38:30 AM PDT by Flaming Conservative ((Pray without ceasing))
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To: Red Badger

I recently switched from sodas to water with Crystal Light. The main reason was because many sodas have sodium added to them and I needed to lower my blood pressure.


112 posted on 08/07/2026 8:43:05 AM PDT by Windcatcher
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To: butlerweave

Everything is an attack on President Trump.

If he drank coffee, there would be a study stating the same results.


113 posted on 08/07/2026 8:51:23 AM PDT by Texas resident ( We finally have an American President again)
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To: Kleon
LI’ve seen enough anecdotal evidence for this to believe it’s true. This is why I ONLY drink Coke ZERO or cane sugar Coke.

Coke ZERO also has aspartame the same as Diet Coke.

114 posted on 08/07/2026 9:09:45 AM PDT by higgmeister (In the Shadow of The Big Chicken! )
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To: Red Badger
I drink Publix house brand Diet Cola.   It is sweetened with Sucralose just like Diet Coke used when it first came out.
115 posted on 08/07/2026 9:17:14 AM PDT by higgmeister (In the Shadow of The Big Chicken! )
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To: Red Badger

According to my own experiences, most over achievers who own their own successful businesses, drink diet coke instead of coffee.


116 posted on 08/07/2026 9:23:21 AM PDT by Dixie Yooper (Ephesians 6:11)
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To: Red Badger
Me either, but I just started drink it instead of regular Dr Pepper. Have been drinking Dr Pepper all my life and I’m 71...............

The mention of Dr. Pepper always reminds of a guy I knew in the Air Force. During the course of the duty day, instead of lunch, he'd finish off a six-pack of Dr. Pepper and a family sized package of Oreo double-stuffed cookies. Every single day without fail for the two years I knew him.

117 posted on 08/07/2026 9:34:39 AM PDT by fidelis (Ecce Crucem Domini! Fugite partes adversae! Vicit Leo de tribu Juda, Radix David! Alleluia!)
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To: fidelis

And he passed the PFT?.................


118 posted on 08/07/2026 9:40:56 AM PDT by Red Badger (Iryna Zarutska, May 22, 2002 Kyiv, Ukraine – August 22, 2025 Charlotte, North Carolina Say her name)
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To: Red Badger

As a Mtn Dew drinker, I say those who choose are in Cognitive Decline choose Diet Coke.

Don’t reverse the cause and effect of the correlation.


119 posted on 08/07/2026 9:41:04 AM PDT by spintreebob
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To: P-Marlowe

Congratulations! Diet is definitely the key to good health and longevity.


120 posted on 08/07/2026 10:43:41 AM PDT by Blennos (This is the official Blennos tagline. Thanks to Big Red Badger. )
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