The Claim

In adults under 60 without diabetes, higher consumption of low- and no-calorie sweeteners is associated with a faster decline in verbal fluency and global cognition; in adults with diabetes, higher consumption of low- and no-calorie sweeteners is associated with a stronger decline in memory and global cognition.

Source: Association Between Consumption of Low- and No-Calorie Artificial Sweeteners and Cognitive Decline: An 8-Year Prospective Study.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
52score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Adults under 60 without diabetes who consume more low- and no-calorie sweeteners show a faster decline in verbal fluency and overall thinking skills. Adults with diabetes who consume more of these sweeteners show a stronger decline in memory and overall thinking skills.

See the scientific wording

In adults under 60 without diabetes, higher consumption of low- and no-calorie sweeteners is associated with a faster decline in verbal fluency and global cognition, while in those with diabetes, the association is stronger for memory and global cognition, indicating potential differential effects by metabolic status.

Why this might work

Artificial sweeteners change the bacteria in the gut, which causes inflammation and weakens the barrier that protects the brain. This lets harmful substances enter the brain, reducing the energy available to nerve cells and making it harder for them to communicate, leading to faster memory and thinking decline.

Suggested mechanismbased on 1 study

What the research says

1 study

  1. Study: Association Between Consumption of Low- and No-Calorie Artificial Sweeteners and Cognitive Decline: An 8-Year Prospective Study.

    People under 60 without diabetes who drank a lot of diet sodas or ate foods with artificial sweeteners over 8 years showed slightly faster declines in word-finding and overall thinking skills compared to those who consumed less. People with diabetes showed even stronger memory and thinking declines.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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