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3. Cod Liver Oil

Although cod liver oil is more of a supplement than actual food, it is still necessary for a healthy, balanced diet. The oil is extracted from the livers of codfish and is most commonly sold as capsules or liquid. Not only is this oil high in omega-3 fatty acids, but it is also loaded with vitamin D and vitamin A. When using a supplement, read the label carefully. An adult can safely take in about 3000mg of cod liver oil a day but make sure you're not getting too much vitamin A when taking large doses.

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.