Side Effects of Omega-3 Fatty Acids (Cont.)

Bothersome Side Effects of Omega-3 Fatty Acids

Many omega-3 fatty acid supplements are fish oil products. These supplements may cause gastrointestinal side effects. Some people find that keeping their fish oil supplement in the freezer helps to reduce many of these problems. These possible side effects include:
 
Another popular source of omega-3 is flaxseed and flaxseed oil, which may cause the following side effects:
 
  • Bloating
  • Gas
  • Abdominal pain (stomach pain)
  • Diarrhea or loose stools
  • Constipation (if you take it without enough water)
  • Indigestion or heartburn
  • Nausea.
     

Final Thoughts on Side Effects of Omega-3 Fatty Acids

If you think you are experiencing an omega-3 fatty acid side effect, please let your healthcare provider know. Also, let him or her know if you develop something that "just does not seem right." While it may not be a side effect of omega-3 fatty acids, your healthcare provider will be able to diagnose and treat the problem.
 
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;