The Claim

Higher intake of artificial sweeteners is associated with a 9% increased risk of cardiovascular disease among adults, with a hazard ratio of 1.09 (95% CI: 1.01–1.18), based on longitudinal data from 103,388 French adults followed for a median of 9 years.

Source: Artificial sweeteners and risk of cardiovascular diseases: results from the prospective NutriNet-Santé cohort

What the research says

Supports is higher

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

Supports
66score
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

People who consume more artificial sweeteners have a 9% higher risk of developing cardiovascular disease compared to those who consume less, according to a long-term study of over 100,000 French adults.

See the scientific wording

Higher intake of artificial sweeteners is associated with a 9% increased risk of cardiovascular disease overall, with a hazard ratio of 1.09 (95% CI: 1.01–1.18), based on data from 103,388 French adults followed for a median of 9 years, suggesting that even moderate daily consumption may contribute to cardiovascular risk in the general population.

Why this might work

Artificial sweeteners change the types of bacteria in the gut, which triggers chronic inflammation in the blood vessels and damages the inner lining of arteries, leading to heart disease.

Suggested mechanismbased on 1 study

What the research says

1 study
  1. Study: Artificial sweeteners and risk of cardiovascular diseases: results from the prospective NutriNet-Santé cohort

    This big study found that people who regularly eat or drink things with artificial sweeteners, like diet soda, had a slightly higher chance of having a heart attack or stroke over time, even after accounting for other healthy or unhealthy habits.

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

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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