Lipid panel
Linoleic Acid
LOINC 90917-6 · %
What it is
Linoleic acid is the most common omega-6 fatty acid in the diet, reported as a percentage of blood fatty acids. It is an essential fat the body cannot make.
Why it matters
Its level reflects your intake of vegetable oils and seeds, and research generally links higher linoleic acid with favourable cardiovascular markers.
What high values can mean
A higher percentage usually reflects a diet richer in plant oils and is, in moderation, generally regarded as neutral-to-favourable.
What low values can mean
A lower percentage can reflect a diet low in these plant fats.
How to improve it
Including sources of unsaturated plant fats supports healthy linoleic-acid levels; overall fatty-acid balance matters more than any single number.
Food & lifestyle
Sunflower, soybean and other vegetable oils, nuts and seeds are the main sources of linoleic acid.
Preparing for the test
Part of a fatty-acid (omega) profile; fasting is usually not required — follow your lab's instructions.
When to talk to a doctor
Interpret with a clinician as part of your overall fatty-acid profile.
Related markers
Sources
- NIH Office of Dietary Supplements
- Testing.com (AACC)
Content reviewed on June 26, 2026
Medical disclaimer
This content is for educational purposes only. It is not medical advice and does not diagnose, treat, or prevent any condition. Reference ranges vary between laboratories — always use the range printed on your report and discuss your results with a healthcare professional.
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