I am a doctor, my mother (80 years old) has taken this omega-3 from Nordic Naturals for some years now and I can say that the effects are impressive, especially with regard to the osteo-articular part. She suffers from arthrosis, with chronic joint pain, and on two or three occasions when the medication has finished (difficulty in importing), causing interruption of treatment for a few days, she reported worsening pain. And when he returned to taking Ultimate Omega, the improvement occurred quickly, in a matter of a few days. Now we take care that the Ultimate Omega does not lack and we are always asking on a regular basis - because of Brazilian customs, we usually ask for the smallest presentation (60 capsules), and each order is made with a maximum of two (02) items. When I receive the message in my email that the order has been sent, I wait about 12 days and place a new order. In addition to the excellent effects observed on the bony part, her cardiac-vascular tests are also well-suited, with well-controlled levels of cholesterol and triglycerides. She also takes Ubiquinol 100 mg (active form of coenzyme Q-10) and resveratrol 100mg, both of which are purchased here in E-vitamins.