General health context markers

Insulin resistance is common in PCOS, and low vitamin D and low iron stores are common and correctable in general. These tests give useful health context and can flag something worth acting on.

Read them as context rather than as a fertility diagnosis: none of them diagnoses infertility or produces a fertility score. Filia lists insulin in its catalog, but current PCOS guidance finds the available insulin assays of limited clinical relevance — so read a result as context for your provider, not as a fertility threshold.