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van Dokkum, W. (author), Schrijver, J. (author), Wesstra, J.A. (author), Instituut CIVO-Toxicologie en Voeding TNO (author)
The biological variability of the values of various biochemical indices used for the assessment of the nutritional status of man was investigated in 4 healthy male volunteers (mean age 23 years). They were given a constant diet for 60 d, with the nutrient intake at the level of the Dutch recommendations. Blood was collected twice a week and 24-h...
article 1990
van Dokkum, W. (author), de Vos, R.H. (author), Muys, Th. (author), Wesstra, J.A. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
1. During a period of 2.5 years, every 3 months 221 different food items forming a 'market basket' were purchased, prepared and divided into twenty-three food-commodity groups. The 'market basket' was based on a study of the dietary intake of 18-year-old male, Dutch adolescents. In the (homogenized) food groups various minerals and trace...
article 1989
van Dokkum, W. (author), Wesstra, A. (author), Luyken, R. (author), Hermus, R.J.J. (author), Instituut CIVO-Toxicologie en voeding TNO (author)
Twelve young men were given for periods of 20 d, each of three mixed diets, namely a low-protein (LP) diet (9% total energy as protein, 67% of animal origin), a high-animal-protein (HA) diet (16% total energy as protein, 67% of animal origin) and a high-vegetable-protein (HV) diet (16% total energy as protein, 67% of vegetable origin). Retention...
article 1986