People who drink diet sodas or use artificial sweeteners often have health problems, but it might not be because the sweeteners cause the problems — maybe people who are already unhealthy are just more likely to use them.

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Pro

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Evidence from Studies

Supporting (2)

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Community contributions welcome

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Correlation Analyses of the Consumption of Artificial Sweeteners During Pregnancy and the Incidence of Gestational Diabetes Mellitus

Cross-Sectional Study

Human

2025

This study found that pregnant women who ate more artificial sweeteners were more likely to get gestational diabetes, but it can't prove the sweeteners caused it — maybe women who were already at risk for diabetes chose sweeteners to cut sugar, which could explain the link.

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EFFECTS OF ARTIFICIAL SWEETENERS ON HUMAN HEALTH

Narrative Review

This study found that people who drink diet sodas with artificial sweeteners often have more health problems, but it doesn’t prove the sweeteners cause those problems — maybe people with health issues just choose diet drinks more often.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

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.

Similar Assertions

People who already have health issues like obesity or diabetes often switch to artificial sweeteners to help manage their condition—so when studies see that sweetener users have worse health, it might not be because the sweeteners caused the problem, but because people with the problem chose the sweeteners.

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If you swap out sugary drinks like soda for diet drinks with artificial sweeteners, studies suggest you might be less likely to get type 2 diabetes, heart disease, or die from heart problems or any cause — but only if the study makes sure people weren’t already sick when they switched drinks.

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