Resumo

SANCHEZ, C. et al. Influence of low-protein dietetic foods consumption on quality of life and levels of B vitamins and homocysteine in patients with chronic renal failure. Nutr. Hosp. [online]. 2010, vol.25, n.2, pp.238-244. ISSN 1699-5198.

Objective: The aim of the study was to determine whether the consumption of low protein dietetic foods^® improved the quality of life and nutritional status for vitamins B and homocysteine in patients with chronic renal failure. Methodology: This nutritional-intervention involved 28 men and 21 women, divided into two groups. The control-group consumed a low-protein diet prescribed, and the experimental-group consumed a diet in which some commonly used foods were replaced by low-protein dietetic foods. The study lasted 6 months. Food consumption was assessed by 24-h recall. Vitamin B₆ as αEAST was measured in blood. Creatinine, urea, vitamin B₁₂, folate and homocysteine were measured in plasma. The impact on the patients' quality of life from consuming the dietetic foods was assessed via the SF-36 questionnaire. Results: After 6 months, the protein intake among the experimental-group had decreased by 40%, and the urea/creatinine ratio and αEAST activity were also lower. The results of the SF-36 questionnaire show that the patients in the experimental-group obtained higher scores in the categories of general health and physical status. Conclusions: The dietetic foods were very well accepted by all patients and their use allowed a better control of the protein intake, improved B₆ status and a better quality of life.

Palavras-chave : Chronic renal failure; Vitamins B; Homocysteine; Dietetic foods; Quality of life.

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