Nutritional assessments are frequently based on amounts of nutrients consumed.
In the present paper the usefulness of nutrient intake data for assessing nutrient adequacy is examined in an elderly British population.
Subjects were'free-living'elderly aged 68-90 years (sixty men, eighty-five women) in Norwich.
Forty-two of forty-nine surviving males and sixty-seven of seventy-nine surviving females were reassessed after 2 years.
With few exceptions, estimated micronutrient intake was not statistically predictive of biochemical measures of nutrient adequacy.
Initial biochemical measures of nutritional adequacy were compared with those found 2 years later in an attempt to assess whether initial biochemical assessment was predictive of the'longer term'situation.
Biochemical measurements at the start of the study were correlated to the same measurements made 2 years later for : serum ferritin, haemoglobin and erythrocyte count, whole-blood Se-glutathione peroxidase (EC 184.108.40.206 ; males only), plasma Cu, alkaline phosphatase (EC 220.127.116.11), ascorbic acid, vitamin B6 (pyridoxal-5-phosphate), folate and vitamin B12, total erythrocyte thiamin (males only), riboflavin (erythrocyte glutathione reductase (EC 18.104.22.168) activation coefficient) : but not for : erythrocyte Cu-superoxide dismutase (EC 22.214.171.124) or plasma Zn.
Either only small changes, or no changes, in mean values were seen over the 2 years for most of the biochemical measures. (...)
Mots-clés Pascal : Nutrition, Besoin nutritif, Micronutriment, Consommation alimentaire, Etat nutritionnel, Vitamine, Surveillance, Indicateur biologique, Alimentation, Vieillard, Homme
Mots-clés Pascal anglais : Nutrition, Nutrient requirement, Micronutrient, Food intake, Nutritional status, Vitamin, Surveillance, Biological indicator, Feeding, Elderly, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0220416
Code Inist : 002B29B. Création : 21/05/1997.