|VITAMIN A TOXICITY AND COD LIVER OIL|
Cod Liver Oil, Vitamin A Toxicity, Frequent Respiratory Infections, and the Vitamin D Deficiency Epidemic; Ann Otol Rhinol Laryngol 2008;117:864-870
On November 11, 2008, sixteen well-known experts, including John J. Cannell, MD, and Reinhold Vieth, MS, PhD, published an unprecedented warning about the ingestion of cod liver oil and resultant vitamin A toxicity.
In the strongly worded document, the group condemned the 1997 Food and Nutrition Board (FNB) recommendations for vitamin D, stating "The 1997 FNB recommendations offend the most basic principles of pharmacology and toxicology, leading us to conclude that the current official guidelines and limitations for vitamin D intakes are scientifically indefensible."
In addition to warning that the consumption of cod liver oil could easily lead to Vitamin A toxicity, the above experts recommended healthy children take 1,000 IU/day of vitamin D for every 25 pounds of body weight. In some cases this is more than 10x current recommendations for children by the government and professional organizations.
Finally, the group recommended that "children with chronic illness such as autism, diabetes, and/or frequent infections" may need to take even more vitamin D, "doses adequate to maintain their 25-hydroxy vitamin D in the mid normal of the reference range (65 ng/ml) - and should be so supplemented year around." Less than 1% of American children currently have such levels.
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