The Claim

In genetically heterogeneous mice, 8% glycine supplementation is associated with a 78% reduction in mortality from pulmonary adenocarcinoma, with 2 deaths observed in the glycine group compared to 9 in the control group (p = 0.03).

Source: Glycine supplementation extends lifespan of male and female mice

What the research says

Supports is higher

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

Supports
16score
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

In mice with genetic variation, a diet containing 8% glycine was linked to fewer deaths from lung cancer compared to a normal diet, with 2 deaths in the glycine group versus 9 in the control group.

See the scientific wording

In genetically heterogeneous mice, 8% glycine supplementation is associated with a 78% reduction in deaths from pulmonary adenocarcinoma, with only 2 deaths in the glycine group versus 9 in controls (p = 0.03), suggesting a potential protective effect against this specific cancer type.

Why this might work

Extra glycine in the blood enters lung immune cells called macrophages and opens special channels that let chloride ions flow in. This makes the inside of the cells more negatively charged, which stops them from becoming active and releasing inflammatory signals. With less inflammation in the lungs, cancer cells cannot grow and spread as easily, leading to fewer deaths from lung tumors.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Glycine supplementation extends lifespan of male and female mice

    Mice that ate extra glycine in their food were much less likely to die from a type of lung cancer than mice that didn’t, suggesting glycine might help protect against this cancer.

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.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.