Most fish oil consumers are getting only a fraction of an optimal dose because they take what is recommended on the label of the bottle. With food grade fish oil supplements you want to take anywhere from five to ten capsules of fish oil every day to get the recommended dose.
Pharmaceutical grade fish oil capsules like that by Doctor's Holistic Rx contain a higher amount of the omega 3 fats. You only have to take 2 1000 mg capsules of pharmaceutical grade fish oil every day to get the recommended dose of the omega 3 fats.
http://www.amazon.com/Doctors-Holistic-Rx-Pharmaceutical-Distillation/dp/B00KKSELFC
http://www.wat.tv/video/12548135