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  • Title: Vitamin C status of 54-year old eastern Finnish men throughout the year.
    Author: Parvianinen MT, Salonen JT.
    Journal: Int J Vitam Nutr Res; 1990; 60(1):47-51. PubMed ID: 2387671.
    Abstract:
    We investigated the vitamin C (ascorbic acid) status in 1077 eastern Finnish men aged 54 years of age examined in the "Kuopio Ischaemic Heart Disease Risk Factor Study" in 1984-86. Dietary intake of ascorbic acid had a strong linear correlation to plasma ascorbic acid, and we found a clear seasonal variation in the plasma ascorbic acid levels: the highest values were found in August-September and again in April, and the lowest levels in November-January and in June. A true vitamin C depletion was found in 8.8% of the 1077 men studied, and, in addition, 16.5% had a mild vitamin C deprivation. The decreased plasma levels of this antioxidant vitamin may be associated with elevated blood pressure.
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