The Claim

Higher intake of N-nitrosodimethylamine (NDMA) is associated with an increased risk of colorectal cancer in adults, with a relative risk of 2.12 between the highest and lowest quartiles of intake, based on a 24-year follow-up study of 9,985 Finnish adults initially free from cancer.

Source: Risk of colorectal and other gastro‐intestinal cancers after exposure to nitrate, nitrite and N‐nitroso compounds: a follow‐up study

What the research says

Supports is higher

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

Supports
47score
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

Eating more of a chemical called NDMA might raise your chances of getting colon cancer, according to a long-term study of Finnish people.

See the scientific wording

Higher intake of N-nitrosodimethylamine (NDMA) is associated with an increased risk of colorectal cancer in adults, with a relative risk of 2.12 between the highest and lowest quartiles of intake, based on a 24-year follow-up study of 9,985 Finnish adults initially free from cancer.

What the research says

1 study

  1. Study: Risk of colorectal and other gastro‐intestinal cancers after exposure to nitrate, nitrite and N‐nitroso compounds: a follow‐up study

    The study looked at the same thing as the claim—how eating foods with NDMA affects colon cancer risk—and found that more NDMA does increase the risk, just like the claim says.

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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