1. 
   Omega-3
   Polyunsaturated fatty acids obtained from some types of food, such as fish. Believed by some people to be helpful in preventing the symptoms of autism.
   Found op http://www.researchautism.net/glossary.ikml?l=o
   
   
2. 
   Omega-3
   Omega-3 (alpha-linolenic acid) is a family of polyunsaturated fatty acids found in fish oil, and first discovered during the 1970s. The family also includes eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Omega-3 fatty acids play an important role as structural membrane lipids, particula...
   Found op http://www.probertencyclopaedia.com/browse/GO.HTM
   
   
3. 
   omega3
   1) Type of essential fatty acid
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/omega3/1
   
   
4. 
   Omega‑3
   are a group of long-chain fatty acids, and known to reduce the risk of heart disease. They are lipid-regulating; and they lower the level of triglycerides; so after a heart attack they reduce the risk of further heart attacks and increase overall survival.
   Found op http://www.bcpa.co.uk/glossary.htm
   
   

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