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The coenzyme Q10 content of the average Danish diet

International Journal for Vitamin and Nutrition Research. Internationale Zeitschrift für Vitamin- und Ernahrungsforschung. Journal International de Vitaminologie et de Nutrition 67(2): 123-129

The coenzyme Q10 content of the average Danish diet

The average dietary intake of coenzyme Q10 and coenzyme Q9 of the Danish population was determined, based on food consumption data from a national dietary survey. Selected food items in edible form were analyzed for the coenzyme Q content by HPCL with UV-detection, and their contribution to the total in-take calculated. The effect of cooking was a 14-32% destruction of coenzyme Q10 by frying, and no detectable destruction by boiling. The average coenzyme Q10 intake of the Danish population was estimated to 3-5 mg/day, primarily derived from meat and poultry (64% of the daily intake), while cereals, fruit, edible fats, and vegetables only make minor contributions. The intake of coenzyme Q9 is approximately 1 mg/day, primarily derived from vegetable fats and cereals. The alpha-tocopherol content of the selected food samples was analyzed by HPLC with fluorescence detection, and the calculated average intake of alpha-tocopherol was comparable to the estimate from the dietary survey (7-8 vs. 7.4 mg alpha-tocopherol/day, respectively). The commercially available dietary supplements (capsules) provide 10-30 mg CoQ10/day, thus substantially higher amounts than present in the average diet. The optimal dietary intake of coenzyme Q10 is unknown.

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Accession: 002980417

PMID: 9129255

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