Table 1.
Comparison of ad libitum dietary content of Day 1 during which no fluids and only dry food items were consumed versus Day 2 during which fluids were consumed ad libitum.
| Dietary Components | 24-h Water Restriction (Day 1) |
24-h Ad libitum Rehydration (Day 2) |
|---|---|---|
| Food energy content (Kcal) | 2,219 ± 897 | 2377 ± 989 |
| Sodium (mg) | 4377 ± 2446 | 3755 ± 2090 |
| Carbohydrate (%) a | 42 ± 12 | 46 ± 10 |
| Fat (%) a | 39 ± 10 | 33 ± 7 |
| Protein (%) a | 20 ± 5 | 21 ± 9 |
| Food moisture + water + beverages (L) b | 0.31 ± 0.24 | 1.13 ± 0.52 c |
| REHY water (L) d | 0 ± 0 | 1.46 ± 0.47 |
| Total daily water intake (L) | 0.31 ± 0.24 | 2.60 ± 0.66 c |
a, expressed as % of total caloric intake; b, food diaries were analyzed using commercial dietary analysis software; c, significantly different from Day 1 (row 6, p = 0.0002; row 8, p = 3.2 × 10−8); d, measured by an investigator after a 30-min ad libitum rehydration period (REHY).