In marathon runners, not eating enough during training raises injury risk, though the size of the increase is not reported.
See the scientific wording
In marathon runners, underfueling (bad nutrition) during marathon training increases the risk of injury; the magnitude of the risk increase, and whether it is an absolute or relative risk increase, was not reported.
Not tested yet
ObservationalNo study measured the main part of this claim. No part of this claim has been tested yet.
Not tested yet
No study measured the main part of this claim. No part of this claim has been tested yet.
Parts of this claim
Underfueling (bad nutrition) during marathon training increases the risk of injury.
Not testedNo studies
Evidence is judged against each part on its own, so a study that tests one part never counts as a verdict on the whole claim.
What the research says
2 studies reviewedSupporting (2)
Cohort StudyHuman2023
The study found that teaching runners to eat enough may lower some types of bone injuries, which suggests that not eating enough could raise injury risk, but the overall effect wasn't strong.
Cohort StudyHuman2019
In male distance runners, a risk score that includes not eating enough predicted more bone injuries, so the study is consistent with the idea that underfueling raises injury risk, though it didn't test underfueling by itself.
Contradicting (0)
No contradicting studies found yet
That doesn't mean it's settled — it just means no study has tested the opposite.
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Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
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