Table 4.
Postprandial glycemic and insulinemic responses to acute feedings of 25 g of Av CHOs of a glucose solution (50% wt/vol) and four commercial extruded dog foods in fasted client-owned Siberian Huskies1
| Glucose | Traditional grain diet | Whole-grain diet | Grain-free diet | Vegan diet |
P-value Treatment |
|
|---|---|---|---|---|---|---|
| Glucose | ||||||
| Peak concentration, mmol/L | 8.27± 0.24a | 7.59 ± 0.29a | 7.48 ± 0.30b | 6.81 ± 0.21b | 7.41 ± 0.28b | <0.0001 |
| Time to peak, min | 96.8 ± 7.8 | 100.9 ± 15.0 | 76.4 ± 13.6 | 94.1 ± 14.0 | 84.6 ± 17.9 | 0.6981 |
| Overall AUC: AUCgluc ≤ 150 min, mmol/L min |
233.9 ± 21.2a | 177.2 ± 28.6ab | 142.5 ± 20.1b | 104.7 ± 14.4b | 164.6 ± 38.9ab | 0.0004 |
| Immediate AUC: AUCgluc ≤ 30 min, mmol/L min |
19.8 ± 2.3 | 10.0 ± 2.9 | 11.9 ± 2.3 | 14.5 ± 3.9 | 13.8 ± 3.9 | 0.1132 |
| Later AUC: AUCgluc ≥ 30 min, mmol/L min |
196.3 ± 50.23a | 162.8 ± 61.3ab | 110.8 ± 41.7ab | 92.5 ± 34.9ab | 51.4 ± 19.4b | 0.0494 |
| GI | — | 83 ± 17 | 56 ± 8 | 41 ± 6 | 65 ± 15 | 0.1537 |
| Insulin | ||||||
| Peak concentration, pg/mL | 675.26 ± 63.9 | 537.54 ± 66.53 | 574.51 ± 71.07 | 500.16 ± 61.95 | 684.33 ± 84.89 | 0.1398 |
| Time to peak, min | 40.4± 6.7a | 109.1 ± 24.9b | 41.9 ± 9.6a | 47.7 ± 10.9ab | 67.6 ± 15.4ab | 0.0078 |
| Overall AUC: AUCins ≤ 150 min, pg/mL min |
28,095.3 ± 5,723.9 | 12,787.6 ± 3,505.1 | 14,437.8 ± 3,954.5 | 16,694.1 ± 4,580.4 | 20,537.9 ± 5,627.1 | 0.0785 |
| Immediate: AUCins ≤ 30 min, pg/mL min |
5,250.0 ± 1,129.0a | 1,251.2 ± 394.7b | 2,842.3 ± 850.8ab | 1,764.6 ± 505.8b | 2,141.7 ± 641.8ab | 0.0009 |
| Later AUC: AUCins ≥ 30 min, pg/mL min |
22,309.7 ± 4,972.0 | 12,114.6 ± 3,709.6 | 12,785.6 ± 3,912.7 | 13,332.2 ± 4,085.7 | 13,724.1 ± 4,200.7 | 0.2948 |
1Values expressed as mean ± SEM; n = 11; values in a row with superscripts without a common letter differ; P < 0.05, ANOVA with Tukey–Kramer post hoc test.