[header] How to take cod liver oil for health [title] Read the labels. [step] Carefully review concentrations of vitamins and other ingredients in all supplements. Buy only supplements that abide by recognized manufacturing standards.
Search for a supplement that uses purified sources and can provide full detail about concentrations of mercury, heavy metals, and other potential contaminants. [substeps] Look for supplements that are endorsed or reviewed by the usp (us pharmacopeial convention)-this will be noted on the label.