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TNO Preventie en Gezondheid (author), Proper, K.I. (author), de Bruyne, M.C. (author), Hildebrandt, V.H. (author), van der Beek, A.J. (author), Meerding, W.J. (author), van Mechelen, W. (author)Objectives. This study evaluated the impact of worksite physical activity counseling using cost-benefit and cost-effectiveness analyses. Methods. Civil servants (N=299) were randomly assigned to an intervention (N=131) or control (N=168) group for 9 months. The intervention costs were compared with the monetary benefits gained from reduced sick...article 2004
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Olthof, M.R. (author), van Vliet, T. (author), Boelsma, E. (author), Verhoef, P. (author)High plasma homocysteine is a risk for cardiovascular disease and can be lowered through supplementation with 6 g/d of betaine. However, dietary intake of betaine is ∼0.5-2 g/d. Therefore, we investigated whether betaine supplementation in the range of dietary intake lowers plasma homocysteine concentrations in healthy adults. Four groups of 19...article 2003