A blood-based fatty acid profile (often a finger-stick bloodspot) that measures the mix of fatty acids reflected in cell membranes, including omega-3s, omega-6s, omega-9s, saturated, monounsaturated, omega-7, and trans fats, then summarizes key balance metrics such as the omega-3 index (EPA+DHA), omega-6/omega-3 balance, and ratios like AA/EPA; it also reports an inferred enzyme activity marker (delta-6-desaturase activity, shown as a linoleic-to-DGLA relationship) and groups some results into a cardiovascular risk-oriented section to help guide diet and omega-3/omega-6 targeting and follow-up testing.