Eating or drinking things with aspartame, even in amounts considered safe, might be linked to more brain inflammation and faster memory or thinking problems in kids, teens, or people who are overweight or have metabolic issues.

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Evidence from Studies

Supporting (1)

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Artificial sweeteners and brain health: critical evaluation of aspartame impact on neurovascular and cognitive consequences

Narrative Review

Human

This study found that even the safe amount of aspartame we're told is okay to drink every day might still harm the brain in kids, teens, or people with obesity, making them more likely to have brain swelling and memory problems over time.

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Artificial sweeteners and brain health: critical evaluation of aspartame impact on neurovascular and cognitive consequences

Score: 1

DOI: 10.1108/nfs-05-2025-0161

Similar Assertions

The safe amount of aspartame set for everyone might be too high for some people—like kids or those with certain health conditions—because their bodies might react differently to it.

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80%

Eating or drinking things with aspartame doesn’t seem to raise or lower blood sugar, insulin, or fat levels in people with diabetes, according to some small studies.

1

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71%

We don’t know for sure if aspartame harms the brain over time because most studies have been too short and too small to catch slow-building problems, especially in people who might be more sensitive to it.

1

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70%