Which fat is pro-inflammatory?

• A. Omega 6 (LA)
• B. Omega 3 (ALA)
• C. Olive Oil
• D. Coconut Oil

Answer: (A)

Fats influence inflammation through their fatty acid makeup, with omega-6 fats tending to promote inflammatory mediators while omega-3 fats tend to dampen them. The fat that is pro-inflammatory here is the omega-6 linoleic acid (LA). LA can be converted into arachidonic acid, which then gives rise to inflammatory prostaglandins and leukotrienes. When omega-6 intake is high relative to omega-3 intake, this pathway can tilt toward more inflammation, which is why LA is considered pro-inflammatory in typical dietary patterns.

The other options don’t fit this pro-inflammatory role as clearly. Omega-3s (even though listed as ALA here) generally lead to anti-inflammatory by producing less inflammatory or resolving eicosanoids. Olive oil is rich in oleic acid and polyphenols, which have anti-inflammatory effects. Coconut oil is high in saturated fat; while its health effects are nuanced and context-dependent, it isn’t characterized primarily by the pro-inflammatory eicosanoid pathway associated with omega-6 LA.