Across 13,867 US whole-blood dried blood spot samples, mean EPA+DHA was 2.7% (SD 1.5), the median AA:EPA ratio was 22.3 (IQR 20.5), and the median total omega-6:omega-3 ratio was 9.0 (IQR 4.5). DBS measures correlate with RBC long-chain omega-3 status, but the study did not report a US mean RBC AA percentage. Samples were crowd-sourced and included supplement users and non-users.
- Question
- What does large-scale whole-blood sampling reveal about contemporary US fatty-acid balance?
- Model
- Cross-sectional analysis of more than 590,000 globally sourced whole-blood dried blood spots, including 13,867 US samples.
- Relevance to ECS Restore
- Provides population-scale context for the high AA-to-EPA substrate ratio observed in US whole blood.