correlational
Among all the foods studied, only eating fish and tofu/soy products showed a clear link to fewer heart problems in people with heart disease — even after accounting for everything else they ate.
Evidence from Studies
No evidence studies found yet.
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.