Consequences of a high phosphorus intake on mineral metabolism and bone remodeling in dependence of calcium intake in healthy subjects – a randomized placebo-controlled human intervention study

Table 2 Mean calculated intake of energy, protein, fat, carbohydrates, calcium and phosphorus during the study periods

Parameter	P1000/Ca0	P1000/Ca500	P1000/Ca1000
Energy [kJ/d]
Placebo	8677±2329	9668±2319	9338±2791
4 weeks	9350±3125	9993±2791	9005±2270
8 weeks	8951±2388	9366±1872	9716±2598
Protein [g/d]
Placebo	76±28	76±17	78±35
4 weeks	78±22	81±25	73±30
8 weeks	80±24	78±15	85±36
Fat [g/d]
Placebo	76±22	92±28	84±33
4 weeks	84±33	88±28	80±31
8 weeks	79±25	79±21	91±33
Carbohydrates [g/d]
Placebo	223±73	250±82	243±68
4 weeks	233±101	278±101	234±69
8 weeks	233±85	256±86	245±73
Calcium [mg/d]
Placebo	887±309	893^a±367	946^a ±428
4 weeks	884±299^A	1382^b±378^B	1889^b±393^C
8 weeks	927±317^A	1383^b±273^B	2008^b ±379^C
Phoshorus [mg/d]
Placebo	1232^a±395	1312^a±381	1306^a±580
4 weeks	2294^b±367	2324^b±445	2214^b±523
8 weeks	2307^b±308	2276^b±230	2401^b±445

n = 62; data are expressed as mean ± standard deviation; P1000/Ca0: 1000 mg phosphorus/0 mg calcium; P1000/Ca500: 1000 mg phosphorus/500 mg calcium; P1000/Ca1000: 1000 mg phosphorus/1000 mg calcium; ^a ^b mean values within a column with dissimilar superscript lower case letters are significantly different (p ≤ 0.05); ^A ^B mean values within a row with dissimilar superscript capital letters are significantly different (p ≤ 0.05); effect of time was tested using general linear model with repeated measurements (with pairwise comparisons based on Bonferroni); effect of supplementation was tested using univariate analysis of variance followed by Bonferroni post hoc test

ISSN: 1475-2891