Most people taking fish oil supplements get only a fraction of an optimal dose because they only take what is shown on the label. When taking a low quality fish oil you should take between five to ten capsules of fish oil on a daily basis to achieve the most healthy quantity.
Pharmaceutical grade fish oil capsules like that from Doctor's Holistic Rx contain a greater percentage of the omega 3 fats. You need to take just 2 1000 mg softgels of pharmaceutical grade fish oil on a daily basis to get the most healthy quantity of the omega 3 fats.
http://www.amazon.com/Doctors-Holistic-Rx-Pharmaceutical-Distillation/dp/B00KKSELFC
http://www.wat.tv/video/12547905