Table 2.
Serum 25(OH)D concentrations (ng/mL) in dogs classified according to the brand/manufacturer of the commercial dog food they are fed
| Manufacturer | Code | Cohort | Min | Max | Median |
|---|---|---|---|---|---|
| Acana | 2 | 38.3 | 249.2 | ||
| Blue buffalo | 2 | 4 | 30.4 | 65.9 | 47.4 |
| Bravo | 3 | 3 | 36.0 | 80.7 | 73.3 |
| Breeder’s choice | 4 | 3 | 39.5 | 61.9 | 44.9 |
| Canidae | 5 | 7 | 47.5 | 75.5 | 71.9 |
| Canine Caviar | 6 | 3 | 56.8 | 61.1 | 57.1 |
| Diamond | 7 | 15 | 29.9 | 79.9 | 54.7 |
| Dick Van Patten | 8 | 6 | 60.3 | 136.0 | 70.1 |
| Dr. Gary’s | 9 | 4 | 63.2 | 140.0 | 88.1 |
| Eagle pack | 1 | 101.0 | 101.0 | ||
| Earthborn holistic | 1 | 107.0 | 107.0 | ||
| Eukanuba | 12 | 13 | 36.2 | 115.0 | 66.3 |
| Evanger’s | 2 | 40.5 | 56.4 | ||
| Exceed | 14 | 6 | 36.5 | 76.1 | 61.9 |
| Exclusive | 2 | 69.8 | 95.6 | ||
| Fromm family | 16 | 12 | 57.2 | 123.0 | 84.4 |
| Hill’s | 17 | 5 | 36.1 | 75.7 | 56.9 |
| Holistic select | 18 | 4 | 45.4 | 118.0 | 73.5 |
| Homemade diet | 19 | 18 | 9.5 | 129.0 | 86.2 |
| Honest kitchen | 20 | 4 | 37.8 | 76.4 | 63.0 |
| Iams | 21 | 8 | 51.5 | 89.2 | 60.5 |
| Joe and Jack’s | 1 | 73.2 | 73.2 | ||
| K-9 kravings | 1 | 75.4 | 75.4 | ||
| Kirkland | 24 | 26 | 38.4 | 145.0 | 84.4 |
| Life’s abundance | 1 | 61.8 | 61.8 | ||
| Mixed | 26 | 10 | 55.3 | 171.2 | 81.6 |
| Natura | 27 | 9 | 46.4 | 123.0 | 98.9 |
| Nature’s variety | 28 | 10 | 40.1 | 109.0 | 89.2 |
| Nutri source | 29 | 5 | 34.6 | 76.8 | 57.8 |
| Nutrisca | 1 | 122.0 | 122.0 | ||
| Nutro | 31 | 9 | 48.2 | 74.1 | 56.2 |
| Orijen | 32 | 4 | 59.7 | 153.2 | 100.1 |
| Pedigree | 1 | 74.1 | 74.1 | ||
| Premium edge | 1 | 73.1 | 73.1 | ||
| Pro pac | 1 | 75.3 | 75.3 | ||
| Purina | 36 | 53 | 23.9 | 212.8 | 70.8 |
| Red flannel | 1 | 47.0 | 47.0 | ||
| Royal canin | 38 | 6 | 16.9 | 66.1 | 52.1 |
| Solid gold | 39 | 4 | 43.9 | 127.0 | 69.1 |
| Taste of the wild | 40 | 44 | 32.6 | 124.0 | 67.7 |
| VeRUS | 2 | 44.8 | 45.0 | ||
| Wellness | 42 | 7 | 52.7 | 120.0 | 72.9 |
Code represents the manufacturers code and correlates with Fig. 2. Cohort refers to the number of dogs in each diet group. Min, Max and Median refer to serum 25(OH) concentrations