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Table 3 Comparison of changes in dietary intakesa

From: Comparison of high protein and high fiber weight-loss diets in women with risk factors for the metabolic syndrome: a randomized trial

  Baseline mean (SD) Week 8 mean (SD) Difference (95% CI)b P c
Energy (KJ)     
HP 8123 (2153) 6509 (1351)   
HFib 8486 (2000) 5976 (925) 580 (9, 1150) 0.047
Protein (%)     
HP 18 (5) 28 (5)   
HFib 18 (4) 22 (3) 5.6 (3.7, 7.5) < 0.001
Protein (g)     
HP 82 (22) 104 (16)   
HFib 86 (18) 76 (11) 28 (21, 35) < 0.001
   Animal protein (g)     
HP 53 (19) 76 (14)   
HFib 54 (16) 56 (14) 21 (14, 28) < 0.001
Fat (%)     
HP 33 (8) 29 (5)   
HFib 31 (7) 23 (6) 5.8 (2.9, 8.8) < 0.001
Saturated fat (%)     
HP 13 (3) 9 (4)   
HFib 13 (4) 6 (3) 3.0 (1.5, 4.7) 0.001
CHO (%)     
HP 45 (6) 40 (6)   
HFib 47 (7) 51 (6) -11.1 (-14.2, -8.1) < 0.001
Dietary fiber (g/day)     
HP 25 (10) 24 (8)   
HFib 26 (7) 39 (11) -14.2 (-18.9, -9.5) < 0.001
Soluble dietary fiber (g/day)     
HP 12 (5) 10 (3)   
HFib 12 (3) 16 (5) -5.2 (-7.2, -3.2) < 0.001
Insoluble dietary fiber (g/day)     
HP 13 (5) 14 (5)   
HFib 14 (5) 23 (7) -8.9 (-12.0, -5.9) < 0.001
Sodium (mg/d)     
HP 2479 (909) 2049 (677)   
HFib 2745 (840) 2125 (498) -15 (-264, 294) 0.912
Alcohol (g)     
HP 6 (9) 3 (5)   
HFib 5 (9) 2 (5) 0.4 (-1.6, 2.4) 0.693
  1. a High protein diet (HP) n = 33 records, and high fiber diet (HFib), n = 36 records;
  2. b difference between HP and HFib diets estimated by ANCOVA with adjustment for baseline value;
  3. c p-value for the difference between the HP and HFib diets