Table 2.
Comparison of mean nutrient intake before and after each potato intervention.
| Variable | Mean ± SD Boiled |
p-Value Boiled |
Mean ± SD Chilled |
p-Value Chilled |
p-Value Difference in Change between Groups |
|---|---|---|---|---|---|
| Energy (kcal) | |||||
| Pre | 1828 ± 842 | 0.329 | 1933 ± 891 | 0.528 | |
| Post | 1987 ± 1223 | 1843 ± 1220 | |||
| Difference | 160 ± 865 | −67 ± 774 | 0.185 | ||
| CHO (g) | |||||
| Pre | 211.2 ± 95.9 | 0.55 | 206.0 ± 83.8 | 0.457 | |
| Post | 223.9 ± 140.6 | 218.6 ± 130.3 | |||
| Difference | 12.7 ± 112.7 | 16.1 ± 90.8 | 0.876 | ||
| Protein (g) | |||||
| Pre | 76.6 ± 45.2 | 0.753 | 77.7 ± 34.7 | 0.895 | |
| Post | 78.5 ± 49.5 | 76.8 ± 52.8 | |||
| Difference | 1.9 ± 32.0 | −1.2 ± 37.2 | 0.72 | ||
| Fat (g) | |||||
| Pre | 76.6 ± 40.5 | 0.328 | 89.5 ± 55.6 | 0.065 | |
| Post | 84.5 ± 60.4 | 75.1 ± 62.2 | |||
| Difference | 7.9 ± 42.8 | −13.2 ± 41.4 | 0.026 | ||
| Monounsaturated fat (g) | |||||
| Pre | 27.7 ± 15.7 | 0.608 | 31.9 ± 18.6 | 0.095 | |
| Post | 28.9 ± 19.0 | 26.9 ± 22.7 | |||
| Difference | 1.2 ± 12.9 | −4.5 ± 16.0 | 0.09 | ||
| Polyunsaturated fat (g) | |||||
| Pre | 17.6 ± 9.7 | 0.294 | 22.0 ± 15.0 | 0.11 | |
| Post | 20.2 ± 16.7 | 18.1 ± 14.2 | |||
| Difference | 2.6 ± 13.3 | −3.9 ± 13.4 | 0.013 | ||
| Saturated fat (g) | |||||
| Pre | 24.8 ± 13.6 | 0.303 | 28.5 ± 20.6 | 0.047 | |
| Post | 28.2 ± 21.2 | 23.7 ± 21.6 | |||
| Difference | 3.4 ± 17.6 | −4.2 ± 12.5 | 0.045 | ||
| Trans fatty acids (g) | |||||
| Pre | 2.3 ± 1.8 | 0.679 | 2.4 ± 1.6 | 0.608 | |
| Post | 2.2 ± 1.3 | 2.6 ± 2.9 | |||
| Difference | −0.1 ± 1.6 | 0.3 ± 2.7 | 0.345 | ||
| % kcal from CHO | |||||
| Pre | 46.4 ± 9.3 | 0.488 | 44.0 ± 8.7 | 0.033 | |
| Post | 45.3 ± 10.7 | 49.3 ± 11.7 | |||
| Difference | −1.1 ± 8.7 | 5.4 ± 13.0 | 0.032 | ||
| % kcal from protein | |||||
| Pre | 16.6 ± 5.1 | 0.875 | 16.8 ± 4.6 | 0.688 | |
| Post | 16.4 ± 4.6 | 16.4 ± 5.3 | |||
| Difference | −0.2 ± 5.6 | −0.7 ± 5.4 | 0.692 | ||
| % kcal from fat | |||||
| Pre | 36.5 ± 6.6 | 0.798 | 38.3 ± 6.8 | 0.032 | |
| Post | 36.2 ± 8.7 | 33.9 ± 9.1 | |||
| Difference | −0.4 ± 7.6 | −4.3 ± 11.0 | 0.088 | ||
| Fiber (g) | |||||
| Pre | 14.8 ± 7.0 | 0.502 | 15.6 ± 6.2 | 0.418 | |
| Pro | 15.8 ± 10.2 | 16.7 ± 8.9 | |||
| Difference | 1.1 ± 8.3 | 1.5 ± 7.0 | 0.813 | ||
| Glycemic index * | |||||
| Pre | 59.8 ± 4.5 | 0.833 | 60.2 ± 4.0 | 0.001 | |
| Post | 60.0 ± 3.7 | 64.3 ± 7.3 | |||
| Difference | 0.2 ± 5.9 | 4.1 ± 6.5 | 0.049 | ||
| Glycemic load | |||||
| Pre | 118.2 ± 52.8 | 0.539 | 115.5 ± 49.0 | 0.171 | |
| Post | 125.1 ± 78.3 | 130.0 ± 76.9 | |||
| Difference | 6.9 ± 59.8 | 15.3 ± 52.6 | 0.486 |
* Glycemic index was calculated using glucose as the reference. The bold shows the significant differences.