TY - JOUR
T1 - Evaluation of calculated energy and macronutrient contents of diets provided in controlled dietary intervention trials by chemical analysis of duplicate portions
AU - Siebelink, E.
AU - de Vries, J.H.M.
AU - Trijsburg, L.E.
AU - Hulshof, P.J.M.
PY - 2015
Y1 - 2015
N2 - The purpose of this study was to investigate whether Dutch food composition databases (Dutch-FCDB)
are accurate enough to plan experimental diets with specified amounts of energy and macronutrients.
From 2003 to 2012, 10 controlled dietary intervention trials lasting from 2 to 13 weeks were conducted
in different seasons. The energy, macronutrients, dietary fibre, water and fatty acids contents of the test
diets were calculated with 3 releases of the Dutch-FCDB and compared with the chemically analyzed
nutrients in 25 duplicate diets, except for fatty acids which were analyzed in 10 diets. Calculated values
of energy and macronutrient content, especially carbohydrates, were higher than values based on
analysis. Correlation coefficients ranged from 0.57 for energy to 1.00 for polyunsaturated fatty acids
(PUFA). Bland–Altman plots showed considerable differences for the individual diets, limits of
agreement (mean 1.96 SD) were 11.0 to +11.0 g/day for protein, 14.2 to +21.6 g/day for total fat, 4.8 to +57.0 g/day for carbohydrates and 10.7 to +11.5 g/day for dietary fibre. We therefore conclude that Dutch-FCDB can be considered accurate enough for planning of experimental diets to be provided in controlled dietary intervention trials.
AB - The purpose of this study was to investigate whether Dutch food composition databases (Dutch-FCDB)
are accurate enough to plan experimental diets with specified amounts of energy and macronutrients.
From 2003 to 2012, 10 controlled dietary intervention trials lasting from 2 to 13 weeks were conducted
in different seasons. The energy, macronutrients, dietary fibre, water and fatty acids contents of the test
diets were calculated with 3 releases of the Dutch-FCDB and compared with the chemically analyzed
nutrients in 25 duplicate diets, except for fatty acids which were analyzed in 10 diets. Calculated values
of energy and macronutrient content, especially carbohydrates, were higher than values based on
analysis. Correlation coefficients ranged from 0.57 for energy to 1.00 for polyunsaturated fatty acids
(PUFA). Bland–Altman plots showed considerable differences for the individual diets, limits of
agreement (mean 1.96 SD) were 11.0 to +11.0 g/day for protein, 14.2 to +21.6 g/day for total fat, 4.8 to +57.0 g/day for carbohydrates and 10.7 to +11.5 g/day for dietary fibre. We therefore conclude that Dutch-FCDB can be considered accurate enough for planning of experimental diets to be provided in controlled dietary intervention trials.
KW - Diet validation
KW - Dietary controlled intervention trials
KW - Duplicate portions
KW - Food analysis
KW - Food composition
KW - Food composition databases
KW - Menu design
KW - Nutrient calculations
U2 - 10.1016/j.jfca.2015.04.010
DO - 10.1016/j.jfca.2015.04.010
M3 - Article
SN - 0889-1575
VL - 43
SP - 68
EP - 74
JO - Journal of Food Composition and Analysis
JF - Journal of Food Composition and Analysis
ER -