Researchers followed nearly 10,000 Finnish adults for 24 years and found that eating foods with nitrates or nitrites didn't increase their chances of getting stomach or intestinal cancers.

Pro

Against

Evidence from Studies

Supporting (1)

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

Cohort Study

Human

1999 Mar 15

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

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

Score: 47

DOI: 10.1002/(sici)1097-0215(19990315)80:6<852::aid-ijc9>3.0.co;2-s

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