Table 3

Concentrations of plasma and excretion of renal and faecal minerals after intervention with either tricalcium phosphate, vitamin D3 or both
Parameter Supplements Placebo Interventions
4 weeks 8 weeks
Plasma calcium [mmol/l] CaP 2.4a (0.1) 2.3b (0.1) 2.3b (0.1)
Vitamin D3 2.4a (0.1) 2.3b (0.1) 2.3b (0.1)
CaP+vitamin D3 2.4a (0.1) 2.3b (0.1) 2.4b (0.1)
Renal calcium excretion [mg/d] CaP 158 (84) 187 (98)1 171 (79)
Vitamin D3 133 (53) 141 (64)2 152 (58)
CaP+vitamin D3 117 (60) 143 (63)12 130 (57)
Faecal calcium excretion [mg/d] CaP 763a (434) 1214b (386)1 1324b (465)1
Vitamin D3 810 (328) 723 (366)2 708 (423)2
CaP+vitamin D3 657a (318) 1149b (426)1 1254b (449)1
Plasma phosphate concentration [mmol/l] CaP 1.1 (0.1) 1.2 (0.2) 1.1 (0.1)
Vitamin D3 1.1 (0.1) 1.1 (0.2) 1.1 (0.1)
CaP+vitamin D3 1.2 (0.1) 1.2 (0.1) 1.1 (0.2)
Renal phosphorus excretion [mg/d] CaP 917 (354) 881 (289) 816 (289)
Vitamin D3 857a (236) 841ab (276) 963b (300)
CaP+vitamin D3 807 (276) 818 (290) 894 (288)
Faecal phosporus excretion [mg/d] CaP 554a (382) 716b (331) 754b (331)1
Vitamin D3 584 (218) 544 (309) 450 (275)2
CaP+vitamin D3 496a (229) 696b (270) 740b (260)1
Plasma magnesium concentration [mmol/l] CaP 0.9 (0.1) 0.9 (0.1) 0.9 (0.1)
Vitamin D3 1.0 (0.1) 0.9 (0.0) 0.9 (0.0)
CaP+vitamin D3 0.9 (0.1) 0.9 (0.1) 0.9 (0.0)
Renal magnesium excretion [mg/d] CaP 93 (41) 90 (45) 86 (31)
Vitamin D3 79a (23) 84a (30) 98b (31)
CaP+vitamin D3 75 (31) 76 (25) 73 (26)
Faecal magnesium excretion [mg/d] CaP 207 (136) 191 (103) 208 (119)
Vitamin D3 234 (85) 242 (135) 205 (97)
CaP+vitamin D3 191 (74) 178 (56) 180 (54)

n = 56; data are expressed as mean (standard deviation); CaP: tricalcium phosphate; a b mean values within a row with dissimilar superscript letters are significantly different (p ≤ 0.05); 1 2 mean values within a column with dissimilar superscript numbers are significantly different (p ≤ 0.05); results without superscripts in a row/column have no significant differences; effect of time was tested using general linear model with repeated measurements (with pairwise comparisons based on Fishers-LSD test); effect of supplementation was tested using univariate analysis of variance followed by Student-Newman-Keuls post hoc test.

Trautvetter et al.

Trautvetter et al. Nutrition Journal 2014 13:6   doi:10.1186/1475-2891-13-6

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