OptimealHealth
Acides gras essentiels

Docosahexaenoic acid

A long-chain omega-3 fatty acid crucial for the brain and eyes, primarily present in marine products.

Definition

A very long-chain omega-3 polyunsaturated fatty acid (C22:6) also known as DHA. It is a major component of neural and retinal membranes.

How it works

DHA (docosahexaenoic acid) is the longest and most polyunsaturated omega-3 fatty acid, present in high concentration in the brain and retina. It is the major constituent of grey brain matter and ocular photoreceptors. DHA is particularly important during pregnancy, breastfeeding, and early childhood for optimal neurological development. Unlike ALA, DHA cannot be efficiently synthesized by the body and must be provided directly through nutrition.

Role

Essential structural component of the brain and retina, fundamental for neurological development and vision.

Examples

  • Salmon
  • Trout
  • DHA-enriched eggs
  • Fish oil
  • Seaweed
  • DHA-enriched milk

Recommendations

Pregnant and breastfeeding women should consume 200-300 mg of DHA daily. All adults benefit from regular intake of 200-250 mg per day to support brain health. Prefer direct sources like fatty fish or algae-based supplements.

Key takeaway

DHA is a vital omega-3 fatty acid for the brain and eyes, particularly important during pregnancy and childhood.

A question about Docosahexaenoic acid? Ask our nutrition AI.

Ask a question