Both fish oil and flaxseed oil are desirable as dietary supplements because they are healthy sources of omega-3 fatty acids, which are polyunsaturated fats. These omega-3 fats are considered essential in the diet because the body cannot produce them on its own -- they must be eaten or supplemented daily. These fats play a crucial role in brain function and promote healthy growth and development.
Step 1
Choose an oil based on your dietary guidelines. Flaxseed oil is made from flax seeds, so it is an appropriate choice for vegetarians and vegans. Fish oil is made from the flesh of fish.
Step 2
Compare oils based on nutritional information. Both flaxseed oil and fish oil contain about 120 calories per tablespoon serving, along with about 13.5g of fat. The nutritional oils contain almost exactly the same nutrients. Check labels on specific products in case of any discrepancies unique to the brand.
Step 3
Chose an oil based on specific nutritional benefits. While both flaxseed oil and fish oil contain omega-3 fatty acids, only the fish oil contains an absorbable form of both EPA and DHA, also known respectively as eicosapentaenoic acid and docosahexaenoic acid. These two substances are broken down from ALA, or alpha-linolenic acid, which is found in both flax and fish oil. However, the body is not able to break down the ALA from flaxseed or other plant sources as well as it can from animal sources, such as fish oil.
Step 4
Compare the prices. Fish oil and flax oil are relevantly expensive products. Since these are being intended as a health supplement, users should seek a brand that produces a certified organic fish oil or flaxseed oil to avoid any possibility of ingesting foreign or toxic particles in the supplement. Organic products are often slightly higher in price than conventional ones. Normally, the fish oil will be priced above the flaxseed oil because flaxseed oil is cheaper to produce.
Tips and Warnings
- Both fish oil and flaxseed oil should be stored in the refrigerator.
- Do not take fish or flaxseed oil in excess of the recommended daily amount. Over consumption of omega-3 fatty acids could lower the body's ability to naturally form blood clots, leading to easy bruising and excessive bleeding from small skin injuries.
References
- ''Staying Healthy With Nutrition: The Complete Guide to Diet and Nutritional Medicine''; Elson M. Haas, MD; 2006
- Kitchen Table Medicine: Fish Oil vs Flax Oil
- Bella Online: Benefits of Flaxseed Oil vs. Fish Oil
- University of Maryland Medical Center: Omega-3 Fatty Acids
- Livestrong: My Plate



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