Table 3. Pooled mean differences in energy and selected dietary components in the six studies.
| Nutrient | Difference in means | 95% CI | P value | I2 | P for heterogeneity | |
|---|---|---|---|---|---|---|
| Energy (kcal) | –139.75 | –232.77 | –46.73 | 0.003 | 0 | 0.437 |
| Carbohydrate (% energy) | 13.78 | 3.68 | 23.88 | 0.008 | 93.94 | <0.001 |
| Protein (% energy) | –6.35 | –9.76 | –2.95 | <0.001 | 90.19 | <0.001 |
| Total fat (% energy) | –11.57 | –17.61 | –5.53 | <0.001 | 93.19 | <0.001 |
| Cholesterol (mg) | –172.5 | –221.34 | –123.64 | <0.001 | 71.93 | 0.003 |
| Fiber (g) | 6.96 | 4.22 | 9.7 | <0.001 | 56.88 | 0.041 |
CI, confidence interval.