Most fish oil consumers obtain only a fraction of the recommended dose because they only take what is shown on the label. With a low quality fish oil capsules you should take anywhere from 5-10 capsules of fish oil daily to obtain the optimal dosage. br br Pharmaceutical grade fish oil products like that by Doctor's Holistic Rx contain a greater percentage of the omega 3 fats. You can take just 2 1000 mg softgels of pharmaceutical grade fish oil daily to get the optimal dosage of the omega 3 fats.