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Fatty acid

Arachidonic Acid

Arachidonic acid is an omega-6 fatty acid found in meat, eggs and fish, which the body can also make from linoleic acid. It is a building block of cell membranes.

Also listed as ARA

FitnessFertilityCognition

What it is studied for

The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.

Muscle RecoveryFitnessSmallCNo linked study
Sperm MotilityFertilitySmallCNo linked study
Brain FogCognitionNo effectFNo linked study
Every rating with its studiesGrouped by health goal, with the publications behind each rating

Why people take it

Energy16.4%
Cognition14.1%
Fitness13%
Cardiovascular12.4%
Essential Health11.3%
Immune Support9%

SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.

Sources

  1. SuppCo · Arachidonic Acid nutrient profile

Further reading

Illustration for Arachidonic Acid.GuideArachidonic acid metabolismArachidonic acid gives rise to messengers for inflammation, blood clotting and vascular function. How COX, LOX and omega-3 fatty acids are involved.Read the article