The majority of fish oil takers get a small percentage of the recommended dose because they take what is indicated on the label of the bottle. For a low quality fish oil capsules you want to take between five to ten capsules of fish oil every day to obtain the optimal dosage. br br Pharmaceutical grade fish oil supplements such as those from Doctor's Holistic Rx contain a higher amount of the omega 3 fats. You can take just two 1000 mg softgels of pharmaceutical grade fish oil every day to get the optimal dosage of the omega 3 fats.