Ask the Pharmacist

What is the difference between fish-derived Omega-3s and plant-derived Omega-3s?

Dear Mr. D'Amico, 

I am answering your question by sending you a description of the various sources of Omega-3.

Omega-3 from animals (Omega-3 derived from fish)

Omega-3 fatty acids found in fish are long-chain fatty acids :

  • eicosapentaenoic acid(EPA)
  • docosahexaenoic acid(DHA)

Several scientific studies highlight the benefits of Omega-3 EPA and DHA:

Omega-3 from vegetables

Omega-3 fatty acids from plant sources are the polyunsaturated ones with chains up to 18 carbon atoms. The progenitor is alpha-linolenic acid(ALA), in which walnuts and flaxseeds are rich. ALA must undergo conversion in the body into the biologically active forms: precisely EPA and DHA. However, this conversion is very inefficient (only 1-5 % of ALA converts to EPA and 0.1-0.5 % to DHA), as well as strongly influenced by various factors:

  • age
  • stress
  • physical fatigue

Metabolic processing of ALA is problematic in the majority of the population: therefore, dietary introduction of directly usable Omega-3 EPA and DHA by our bodies is extremely useful (often essential).

Omega-3 from algae (Algae-derived omega-3)

Omega-3 EPA and DHA are also present in algal-derived oils. We, for example, use these substances in the children's supplement Omegor Kids. I hope I have been clear in my explanation and still remain available for further information.

Sincerely,

Dr. Rosaria Ramondino Pharmacist and Pharmaceutical Chemist