Biochemical Parameters of Nutrition in the Elderly

The epidemiological findings suggest that intakes of particular vitamins are related to the incidence of chronic diseases [53]; so vitamin requirements and metabolism should be studied more closely. Vitamins that act as antioxidants appear to have a role in preventing coronary artery disease and cancer [53]. Current work is focusing on the actions of vitamins as related to immune function, the formation of cataracts, and the development of osteoporosis, all associated with ageing [53]. The Food and Nutrition Board, the Institute of Medicine, and the National Academy of Science and Health of Canada have recently developed a standard set of nutrient recommendations, known as dietary reference intakes (DRIs), which has added, with regard to vitamin intakes, the groups for ages 51-70 years and for 70 years and older [54]. These recommendations are listed in Table 3 [54].

Fat-soluble vitamins are D, E, A and K. Fat-soluble vitamins are harder to deplete than water-soluble vitamins, because humans can store variable amounts in the body. Water-soluble vitamins include vitamin C, the B-complex vitamins and folate.

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