Most people taking fish oil supplements get a small percentage of an optimal dose because they take what is indicated on the label of the bottle. When taking a food grade quality fish oil capsules you need to take between 5-10 softgels of fish oil every day to get the best dosage.
Pharmaceutical grade fish oil supplements like that from Doctor's Holistic Rx contain a much higher concentration of omega 3 fatty acids. You can take just 2 softgels of pharmaceutical grade fish oil every day to get the best dosage of omega 3 fatty acids.
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