It depends on the case; there is no single guideline.
Hypothesis article (Petyaev and Bashmakov, Medical Hypotheses 2012): Roquefort, a blue cheese aged with Penicillium roqueforti, would be especially rich in anti-inflammatory compounds and vitamin K2, and could contribute to low cardiovascular mortality despite a high-fat diet ("French paradox"). It is a hypothesis: there are no clinical trials demonstrating benefit.
View the study (hypothesis article) →Like other aged cheeses, Roquefort provides menaquinones (vitamin K2) produced by bacterial fermentation. Dietary vitamin K2 has been associated in cohorts with lower coronary risk (see Fermented cheeses), but this is observational evidence.
View the study (prospective cohort) →Diet · Highest evidence: Low · 2 findings
Blue cheese ripened with Penicillium roqueforti. Included within fermented cheeses. It provides live cultures and vitamin K2. A hypothesis article has attributed to it a role in the "French paradox", but there is no clinical evidence to confirm it.
Information, not medical advice. Scientific evidence reflects the quality of the studies.