The Claim

Exposure to aspartame at concentrations of 25 mg/L and higher significantly reduces viability of cultured human blood cells in a concentration-dependent manner, with an IC50 of 287.342 mg/L, indicating direct cytotoxic effects on primary human lymphocytes under in vitro conditions.

Source: The in vitro cytotoxic, genotoxic, and oxidative damage potentials of the oral artificial sweetener aspartame on cultured human blood cells

What the research says

Supports is higher

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

Supports
37score
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.

How it works
1 study reviewed
In plain English

Aspartame at concentrations of 25 mg/L and higher reduces the viability of human blood cells in laboratory cultures, with half the cells dying at 287.342 mg/L, demonstrating a direct toxic effect on lymphocytes.

See the scientific wording

Exposure to aspartame at concentrations of 25 mg/L and higher significantly reduces viability of cultured human blood cells in a concentration-dependent manner, with an IC50 of 287.342 mg/L, indicating direct cytotoxic effects on primary human lymphocytes under in vitro conditions.

Why this might work

When aspartame breaks down in blood cells, it turns into methanol, which becomes formic acid. Formic acid blocks a key enzyme in the cell's energy factory, stopping the production of energy. Without energy, the cells lose their ability to stay alive and die.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: The in vitro cytotoxic, genotoxic, and oxidative damage potentials of the oral artificial sweetener aspartame on cultured human blood cells

    In a lab test, scientists found that when human blood cells were soaked in very high doses of aspartame, more of them died as the dose went up — exactly as the claim says. Half the cells died at 287 mg per liter, which matches the claim perfectly.

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

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