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Calcidiol increased blood levels of Vitamin D in one month (dogs) – Feb 2021

Rapid improvement in vitamin D status with dietary 25-hydroxycholecalciferol in vitamin D insufficient dogs

J Nutr Sci. 2021 Feb 22;10:e12. doi: 10.1017/jns.2021.4. eCollection 2021.
Rachel A Kurzbard 1, Robert C Backus 1, Shiguang Yu 2
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VitaminDWiki

Notes:
1) Dogs were getting Calcitriol 3 times a day (not just once a day like humans)
2) Response might have been faster than a month – levels were only measured monthly
3) Humans also appear to have a fast response to Calcitriol than Vitamin D
4) HyD has been produced by DSM for animals for many decades
5) DSM is starting to produce HyD for humans in 2021
6) HyD = Calcifediol = Calcitriol = semi-activated vitamin D = (25(OH)D) = blood level measurement of Vitmin D

Getting Vitamin D into your body has the following chart

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 Download the PDF from VitaminDWiki

Vitamin D insufficiency is associated with various disease processes. We determined whether consumption of a diet supplemented with HyD®, a 25-hydroxycholecalciferol (25(OH)D3) source, would safely increase plasma 25(OH)D3 concentrations in Golden Retrievers with low vitamin D status. We hypothesised that dietary supplementation with HyD® would rapidly increase and sustain plasma 25(OH)D3 levels in healthy Golden Retrievers with low vitamin D status compared with supplementation with vitamin D3. Of fifty-seven privately owned dogs recruited with written owner consent, eighteen dogs with low vitamin D status were identified and sorted between two groups to have similar initial plasma 25(OH)D3 concentrations, sex distributions, ages and body weights. Dogs of each group were fed a dry dog food supplemented with either 16 μg/kg of 25(OH)D3 as HyD® (n 10) or 81 μg/kg of cholecalciferol (D3) (n 8) for 4 months. Plasma 25(OH)D3 concentrations were determined monthly. A significant time effect (P < 0⋅001) and time by group interaction (P = 0⋅0045) were found for monthly determined plasma 25(OH)D3 concentrations. Dogs fed the HyD®-supplemented diet experienced a 40⋅5 % rise in plasma 25(OH)D3 values after 1 month (P < 0⋅001) and no change thereafter. Plasma 25(OH)D3 values of dogs supplemented with vitamin D3 did not increase (P > 0⋅05) and were less than values of dogs supplemented with HyD® (P = 0⋅044). With few exceptions, average haematologic, biochemical and urinalyses results remained within the reference range for both groups. Dietary supplementation with HyD® is sufficient to safely increase and sustain plasma 25(OH)D3 levels in healthy dogs.

Attached files

ID Name Comment Uploaded Size Downloads
15491 HyD dogs.jpg admin 24 Apr, 2021 12:50 21.31 Kb 73
15490 HyD good for dogs.pdf PDF 2021 admin 24 Apr, 2021 12:49 427.99 Kb 26
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