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. 2019 Feb 14;121(3):270–284. doi: 10.1017/S0007114518003379

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© The Authors 2018

This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work.

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Fig. 3 — Biochemical parameters over the study day for study 2. (a) Plasma phosphorus, (b) ionised calcium (iCa) and (c) parathyroid hormone (PTH). Diet C (): 1·13 g total phosphorus/4184 kJ (1000 kcal), no added inorganic phosphorus, calcium:phosphorus 1·23. Diet D (): 4·02 g total phosphorus/4184 kJ (1000 kcal), 0·5 g phosphorus from sodium tripolyphosphate (STPP)/4184 kJ (1000 kcal), calcium:phosphorus 1·63. Diet E (): 4·48 g total phosphorus/4184 kJ (1000 kcal), 0·75 g phosphorus from STPP/4184 kJ (1000 kcal), calcium:phosphorus 1·55. Diet F (): 4·45 g total phosphorus/4184 kJ (1000 kcal), 1·0 g phosphorus from STPP/4184 kJ (1000 kcal), calcium:phosphorus 1·48. Diet G (): 4·9 g total phosphorus/4184 kJ (1000 kcal), 1·5 g phosphorus from STPP/4184 kJ (1000 kcal), calcium:phosphorus 1·64. Values are means, with 95 % CI represented by vertical bars. *Mean values were significantly different from baseline (P <0·05). Reference ranges are shown for each parameter. Significant differences between diets: false () and true ().

Inline graphic — Biochemical parameters over the study day for study 2. (a) Plasma phosphorus, (b) ionised calcium (iCa) and (c) parathyroid hormone (PTH). Diet C (): 1·13 g total phosphorus/4184 kJ (1000 kcal), no added inorganic phosphorus, calcium:phosphorus 1·23. Diet D (): 4·02 g total phosphorus/4184 kJ (1000 kcal), 0·5 g phosphorus from sodium tripolyphosphate (STPP)/4184 kJ (1000 kcal), calcium:phosphorus 1·63. Diet E (): 4·48 g total phosphorus/4184 kJ (1000 kcal), 0·75 g phosphorus from STPP/4184 kJ (1000 kcal), calcium:phosphorus 1·55. Diet F (): 4·45 g total phosphorus/4184 kJ (1000 kcal), 1·0 g phosphorus from STPP/4184 kJ (1000 kcal), calcium:phosphorus 1·48. Diet G (): 4·9 g total phosphorus/4184 kJ (1000 kcal), 1·5 g phosphorus from STPP/4184 kJ (1000 kcal), calcium:phosphorus 1·64. Values are means, with 95 % CI represented by vertical bars. *Mean values were significantly different from baseline (P <0·05). Reference ranges are shown for each parameter. Significant differences between diets: false () and true ().