Our fish oil comes from the sardines, anchovies, and mackerel in the cold coastal waters of South America. Krill oil comes from small, shrimp-like marine animals, and possesses a very shrimp-like smell and taste (but, in our experience, not a shrimpy aftertaste or burp). In comparison to krill oil, our Omega-3/Fish Oil is much more concentrated (350 mg EPA and 250 mg DHA vs. 160 mg EPA and 90 mg DHA in the same amount of krill oil) and much less costly ($18.50 for 60 softgels vs $29.95 for 60 half-sized softgels). For the same amount of EPA (and not nearly as much DHA), krill oil would cost about $131 compared to our $18.50 price
Some companies tout krill oil because of the antioxidant astaxanthin contained in it. Though astaxanthin occurs naturally in krill and other fish, astaxanthin is commonly added to increase the levels to as much as 2.5 mg (a high level of astaxanthin, but a very low level of overall antioxidants). Instead of paying a premium for a krill oil product, we recommend supplementing our Omega-3/Fish Oil with our Sport, Health, or Basic products to obtain far higher levels of both omega-3s and antioxidants
Krill oil contains phospholipids, an important component of all cell membranes (walls). Phospholipids are manufactured in abundance by the body, and despite some web site claims, are not necessary to supplement. Web sites also claim that the phospholipids make krill oil more easily absorbed, but there is no supporting research to document that. A recent study (Schuchardt et al. Lipids in Health and Disease 2011, 10:145) does demonstrate increased blood levels of the omega-3 EPA (but not DHA or total omega-3s) from krill oil; however, the reason for which this takes place is undetermined. If we take these study results and apply them to our product, highly concentrated Nutriex Omega-3/Fish Oil still provides higher blood levels of EPA than the same amount of krill oil!