What it does
Different families of fatty acids. They do not all have the same dietary requirements or biological roles.
What symptoms can—and cannot—tell you
Essential fatty-acid deficiency is uncommon but can affect skin and other tissues. ALA (omega-3) and linoleic acid (omega-6) must come from the diet. Symptoms or an individual fatty-acid measurement do not by themselves select a supplement.
Food sources
Nuts, seeds, plant oils, avocados and other foods supply different fatty acids.
Supplement forms
Linoleic acid is an essential omega-6 fat. Omega-7 and omega-9 are not separate essential dietary requirements.
Before taking a supplement
Concentrated supplements can interact with medicines and may differ substantially from foods. Discuss pregnancy, breastfeeding, kidney or liver disease, and planned surgery with a clinician or pharmacist.
Questions for your visit
Could my diet, medicines, absorption or another condition explain my concern? What evidence would support treatment, and how would we check whether it helps?
Names you may see
Omega-6, Omega-7, and Omega-9
Sources & perspective
This is an editorial adaptation of the Purser Wellness nutrient reference app. Purser teaching connections are labeled separately from clinical interpretation. Private cases and individual treatment protocols are not reproduced.
The external resource below explains supplement safety; it does not validate every proposed use of this ingredient.
NIH: omega-3 fatty acidsNCCIH: using dietary supplements wisely
