HEALTH SCIENCE LEXICON

Docosahexaenoic acid – DHA

Diagram of molecular structure of Docosahexaenoic acid (DHA)

What is DHA?

DHA, or docosahexaenoic acid, is a type of omega-3 fatty acid, which are fats that are important for our health. DHA is vital for brain health and function, as well as eye health. Our bodies can’t produce enough DHA on their own, so it’s essential to get it through our diet or supplements. Foods rich in DHA include fish like salmon and tuna, and some types of algae.

In more complex terms, Docosahexaenoic acid (DHA) is a long-chain polyunsaturated fatty acid, with its name originating from its chemical structure: 22 carbons and 6 double bonds. It is primarily found in the grey matter of the brain and the retina of the eyes, forming a vital component of their cell membranes. Because the human body has limited capability to synthesize DHA, dietary consumption or supplement intake is necessary to maintain optimal levels of DHA in the body.

Related Terms:

  • EPA (Eicosapentaenoic Acid)
  • ALA (Alpha-Linolenic Acid)
  • Omega-3 Fatty Acids
  • Fish Oil
  • Algal Oil
  • Brain Health
  • Vision Health
  • Dietary Supplements
  • Cholesterol
  • Triglycerides

External source references for ‘DHA’:

  1. Harvard Health → The real deal on fish oil
  2. WebMD → Docosahexaenoic Acid (DHA)
  3. Journal of Nutrition → The Role of DHA in Brain Development and Function
  4. PubMed → Docosahexaenoic acid and human brain development: evidence that a dietary supply is needed for optimal development.
  5. Mayo Clinic → Omega-3 in fish: How eating fish helps your heart