The Claim

Long-term consumption of aspartame and saccharin is associated with 8–15% higher volumes of visceral, intermuscular, and subcutaneous adipose tissue in middle-aged adults, independent of total caloric intake and diet quality.

Source: Long-term aspartame and saccharin intakes are related to greater volumes of visceral, intermuscular, and subcutaneous adipose tissue: the CARDIA study

What the research says

Supports is higher

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

Supports
60score
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

Middle-aged adults who consume aspartame and saccharin over a long period have 8–15% more fat in visceral, intermuscular, and subcutaneous depots compared to those who do not, even when total calorie intake and diet quality are the same.

See the scientific wording

Long-term consumption of aspartame and saccharin is associated with 8–15% higher volumes of visceral, intermuscular, and subcutaneous adipose tissue in middle-aged adults, independent of total caloric intake and diet quality, suggesting these artificial sweeteners may contribute to fat accumulation in metabolically harmful depots.

Why this might work

Aspartame breaks down in the gut and reduces a key enzyme that normally neutralizes bacterial toxins. This allows toxins to leak into the bloodstream, causing chronic low-level inflammation that triggers fat cells to grow larger and multiply. Saccharin directly enters fat cells and activates programs that make them store more fat while stopping fat breakdown. Together, these processes increase fat accumulation in organs, muscles, and under the skin.

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: Long-term aspartame and saccharin intakes are related to greater volumes of visceral, intermuscular, and subcutaneous adipose tissue: the CARDIA study

    People who drank diet sodas or used artificial sweeteners like aspartame and saccharin for many years ended up with more fat around their organs and muscles, even if they ate the same amount of food and ate healthy as others. This suggests these sweeteners might make your body store more fat.

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

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