Ferrous lactate is a water-soluble iron form whose value depends entirely on genuinely low iron. For deficient people — menstruating women, endurance athletes, blood donors, and those eating little meat — it can restore energy, physical capacity, and well-being. For people who already have enough iron it offers no benefit and risks harmful iron buildup. It commonly upsets the stomach. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Serum ferritin | ~50–100 ng/mL | Best single indicator of iron stores; guides start and stop |
| Transferrin saturation (TSAT) | ~25–45% | Reflects iron available for red-cell production and flags overload |
| Hemoglobin (via complete blood count) | ~13–15 g/dL (women), ~14–16 g/dL (men) | Detects and tracks recovery from anemia |
| Serum iron and total iron-binding capacity (TIBC) | Interpreted together to compute TSAT | Provide the raw values behind transferrin saturation |
| C-reactive protein (CRP) | < 1 mg/L | Detects inflammation that can falsely raise ferritin |
| Soluble transferrin receptor (sTfR) | Lab-specific reference | Marker of tissue iron need that is not distorted by inflammation |
Cadence: Full iron panel plus inflammation marker at baseline, then recheck at ~4 weeks, 8–12 weeks, and every 3–6 months if supplementation continues