Table 1.
Characteristics of the studies that combined calorie restricted diets with polyphenols.
| References, Country | Length months | Age range (mean/SD) | % of females | N (CRD/ CRD-PP) | BMI by groups (mean/SD) | Health status | CRD Suppl | CRD-PP Suppl form: polyphenol type and dosage per day | Diet protocol |
|---|---|---|---|---|---|---|---|---|---|
| Ibero-Baraibar et al. (32) Spain | 1 | 50-80 (57.3/5.3) |
54% | 47 (24/23) |
CRD: 30.3/1.9 CRD-PP: 30.7/2.5 |
Healthy | No Suppl | Cocoa extract: Flavanols 645 mg |
LCD 15%* |
| Mielgo-Ayuso et al. (33) Spain | 3 | 19-49 | 100% | 83 (40/43) |
CRD: 34.3/3.0 CRD-PP: 33.7/2.6 |
Healthy | Lactose Capsule |
Capsule: EGCG 300 mg |
LCD 600 Kcal* |
| Silver et al. (34) US | 3 | 21-50 (38.7/8.2) |
75% | 68 (23/23 Gf/22 Gfj) | CRD: 35.7/3.5 CRD-PP (Gf): 36.3/3.1 CRD-PP (Gfj): 35.2/3.1 |
27% Metabolic Syndrome |
Water | Gf: Naringin 81 mg Gfj: Naringin 119 mg |
LCD 12.5%* |
| Diepvens et al. (35) Netherlands | 3 | 19-57 (41.2) |
100% | 46 (23/23) |
CRD: 27.6/1.8 CRD-PP: 27.7/1.8 |
Healthy | Md Capsule | GT-Capsule: Catechins 1125 mg (225 mg CF) |
LCD |
BMI, body mass index (kg/m2); CF, caffeine; CRD, calorie restriction diet intervention group; CRD-PP, calorie restriction plus polyphenol intervention groups; EGCG, epigallocatechin-gallate; Gf, grapefruit; Gfj, grapefruit juice; GT, green tea; Kcal, kilo calories; LCD, low calorie diet; Md, maltodextrin; N, number of participants in both groups and (by groups); SD, standard deviation; Suppl, supplementation; US, United States.
*
Calorie deficit per day.