Table 2. Characteristics of the included studies in the systematic review.
| Study (year) | Inclusion Criteria | Antihyperglycemic agents | Diet control and physical exercise | Compliance | Food recall |
|---|---|---|---|---|---|
| Prediabetes | |||||
| Akhiruddin (2013) | • FPG (5.6–6.9 mmol/L) • Age 25–55 years •BMI < 30 kg/m2 • SBP 100–140 mmHg, DBP 40–90 mmHg • Healthy, non-smoking, not taking drug, vitamin or supplement • No diabetes, coronary heart disease, cancer or other major illness |
None | • Discontinue health supplement, vitamin C, fruits and juice • Routine physical exercise |
Monitored but not reported | 24 hours dietary intake for 3 days (2 weekdays and 1 weekend day) |
| Type 2 diabetes | |||||
| Hadi (2012) |
• Type 2 diabetes (FPG ≥ 6.1 mmol/L) • Age 20–55 years • Non-pregnant, Non-drinkers |
Taking oral antidiabetic medication | • No diet control and physical exercise |
Not monitored | 24 hours dietary intake for 3 days (2 weekdays and 1 weekend day) |