Taken by mouth, plasmalogens raise blood levels reliably; short courses have been well tolerated. Whether the raised level does anything remains open: memory results conflict, and each clear positive — steadier mood, less fatigue, lower blood fats — rests on one small study. Almost all of it was funded or run by the product makers. Plausible, expensive, payoff not yet demonstrated. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Plasma ethanolamine plasmalogen (PlsEtn) | No established target; track change from own baseline, aiming for a sustained rise | Confirms the product is absorbed and reaching the bloodstream |
| Erythrocyte plasmalogen (% of total phospholipid) | No established target; track change from own baseline | Reflects membrane incorporation rather than transient plasma load |
| Omega-3 Index (red-cell EPA + DHA) | 8–12% of total red-cell fatty acids | Marine products co-deliver omega-3 fats; separates that effect from the plasmalogen effect |
| High-sensitivity C-reactive protein (hs-CRP) | <1.0 mg/L | Tracks the inflammation signal seen with ether-lipid precursor dosing |
| Fasting triglycerides | <80 mg/dL (0.9 mmol/L) | The blood lipid that moved in the precursor trial |
| Ferritin | 30–100 ng/mL (women), 40–150 ng/mL (men) | Iron load is the theoretical amplifier of the iron-dependent oxidation concern |
| Haemoglobin A1c | 4.8–5.4% | Metabolic context; the plasmalogen score tracks inversely with diabetes risk |
| Validated cognitive battery (e.g. composite memory score) | No established target; track change from own baseline on the same platform | The outcome most people buy the supplement for |
| Liver enzymes (ALT, AST) | ALT and AST both <25 U/L | Generic safety screen for a long-term oil supplement |
Cadence: Baseline draw before starting, with the cognitive battery run twice; repeat plasma plasmalogens, the lipid and inflammatory panel and cognition at 12 weeks; then a 6–12 month cadence if the picture is stable. Red-cell measures are not informative if repeated sooner than 3 months.