Table 1. Baseline characteristics of the included studies.
AAD-LFD, Average American diet-low-fat diet; NR, not reported
| Study ID | Country | Study design | Avocado (g/day) | Control diet | Sample size | Age (years) | Male (N) | Female (N) | BMI (kg/m2) | |||||
| Avocado | Control | Avocado | Control | Avocado | Control | Avocado | Control | Avocado | Control | |||||
| Pieterse et al. (2005) [24] | South Africa | Randomized clinical trial | 200 | Energy restricted diet | 28 | 27 | 40.8 ± 8.9 | NR | NR | NR | NR | 31.9 ± 3.9 | ||
| Scott et al. (2017) [25] | United States | Randomized controlled trial | One potato or one cup of chickpeas | 20 | 20 | 63.3 ± 11 | 62.5 ± 9.2 | 6 | 9 | 14 | 11 | 24.1 ± 3.1 | 24.2 ± 2.4 | |
| Wang et al. (2015) [1] | Australia | Randomized, crossover, controlled feeding trial | One Hass avocado | AAD-LFD | 45 | 45 ± 13.3 | NR | NR | 28.2 ± 2.4 | |||||
| Zhang et al. (2022) [26] | United States | Randomized clinical trial | One Hass avocado | Low-fat diet | 49 | 45 | 40.6 ± 11.8 | 42.7 ± 12.5 | 21 | 18 | 28 | 26 | 92.2 ± 14.7 | 32.8 ± 3.88 |
| Colquhoun et al. (1992) [27] | Australia | Randomized clinical trial | 200-500 | Low-fat diet | 15 | 15 | 49 | 49 | 0 | 15 | 66.8 | |||
| Lichtenstein et al. (2022) [28] | United States | Randomized, controlled, parallel-arm, unblinded trial | NR | Habitual diet | 505 | 503 | 50.1 ± 14.3 | 50.4 ± 13.8 | 149 | 129 | 356 | 374 | 32.9 ± 5.3 | 33.2 ± 5.6 |
| Alvizouri-Muñoz et al. (1992) [29] | Italy | Randomized clinical trial | NR | Habitual diet | 21 | 21 | NR | NR | NR | NR | NR | NR | NR | NR |