GNC Salmon Oil Nutraceutical Softgel Capsule is a health supplement that is primarily used for the treatment of Heart Disease. Secondary and off-label uses of GNC Salmon Oil Nutraceutical Softgel Capsule have also been mentioned below. The key ingredient of GNC Salmon Oil Nutraceutical Softgel Capsule is Omega 3 Fatty Acid. The properties of which have been shared below. The correct dosage of GNC Salmon Oil Nutraceutical Softgel Capsule depends on the patient's age, gender, and medical history.