What to watch with B12 and Fruchtbarkeit?

The question about B12 and fertility is important, but the provided context lacks specific information on this link. Generally, vitamin B12 is crucial for homocysteine metabolism and cell division, both of which can affect fertility. B12 deficiency is associated with elevated homocysteine, which in turn is linked to increased risk of recurrent pregnancy loss and ovulatory dysfunction. However, these insights come from general medical literature, not from MyBody-X test data. The accuracy of home B12 tests is limited; they often measure total B12 rather than the active form (holotranscobalamin). Falsely normal values can occur in kidney dysfunction. For fertility issues, a doctor should perform comprehensive diagnostics (including homocysteine, methylmalonic acid, folate). Self-supplementation without confirmed deficiency is not advisable. Evidence: unclear, as the context provides no direct support.