Omega-3 fatty acid, DHA and EPA are contained in fish oil. Depending on fish type, its contents vary a lot. Generally, it is found in salmon, sardine, tuna, etc. Products sold as a health functional food mainly use this fish oil as materials. Normally, it is extracted from fish liver and for a long time, raw materials extracted from cod liver have been used globally. In addition to that, it is sometimes found in algae.
Omega-3 fatty acid is food that has been eaten safely for a long time However FDA recommends not to take over 3G of OMEGA-3 fatty acid from fish oil a day. Even though it is not serious toxicity. Its fat contains much fat soluble vitamin which is cautious. However, The volume and respose effect on OMEGA-3 fatty acid is not clear. Eskimo eats 6.5G OMEGA-3 fatty acid a day. But any special adverse effect is not observed. In case 3G DHA and EPA are eaten a day, special adverse effect has not been reported except for adverse effect in stomach. (LEAF, ETC. 1994) As a result to review various literatures to improve blood flow and to determine intake volume that controls neutral fat in blood, minimum intake volume was set as 500 mg by referring result of DART study and Kris-Etherton, etc (2002). We recommend proper intake volume of DHA and EPA in healthy functional food is 0.5 to 2g per day considering under 3g restricted by U.S.A. FDA and intake of omega-3 from meal.
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