Table 2.
Average three-day nutrient intake compared to DRI and MDRI standards.
| Variable | DRI | MDRI (Male) | Daily Intake | ||
|---|---|---|---|---|---|
| Mean | SD | 95% CI (Min, Max) |
|||
| Calories (kcal/day) | 3400 | 2292 | 630.4 | 2182.3, 2401.9 * | |
| Protein (%) | 10–35 | 10–35 | 21.9 | 6.2 | 20.8, 22.8 |
| Protein (g/day) | 102 | 123.4 | 45.3 | 116.2, 130.6 | |
| Carbohydrate (%) | 45–65 | 50–55 | 37 | 10 | 35.4, 38.6 * |
| Carbohydrates (g/day) | 510 | 209.5 | 79.2 | 196.8, 221.8 * | |
| Fat (%) | 20–35 | 25–30 | 39.4 | 8.6 | 38.0, 40.8 * |
| Fat (g/day) | <113 | 101.5 | 39.6 | 95.2, 107.8 | |
| Linoleic acid (g/day) | 17 | 17 | 9.6 | 6.3 | 8.6, 10.6 * |
| Alpha-linolenic acid (g/day) | 1.6 | 1.6 | 1.1 | 0.9 | 0.9, 1.2 * |
| Fiber (g/day) | 38 | 34 | 21.9 | 10.2 | 20.0, 23.5 * |
| Vitamin A (μg/day) | 900 | 900 | 914.1 | 786.9 | 787.1, 1041.0 |
| Vitamin D (IU/day) | 600 | 600 | 220.1 | 668.9 | 112.1, 327.9 * |
| Vitamin E (mg/day) | 15 | 15 | 7.5 | 7.4 | 6.4, 8.7 * |
| Vitamin K (μg/day) | 120 | 120 | 113.8 | 121.2 | 94.2, 133.4 |
| Thiamin (mg/day) | 1.2 | 1.2 | 1.1 | 0.7 | 0.9, 1.2 |
| Riboflavin (mg/day) | 1.3 | 1.3 | 1.7 | 1 | 1.5, 1.9 * |
| Niacin (mg/day) | 16 | 16 | 23.2 | 12.5 | 21.2, 25.2 * |
| Vitamin B6 (mg/day) | 1.3 | 1.3 | 1.9 | 1.3 | 1.7, 2.2 * |
| Vitamin B12 (μg/day) | 2.4 | 2.4 | 4.7 | 4 | 4.0, 5.3 * |
| Folate (μg/day) | 320 | 400 | 300.4 | 222.1 | 264.6, 336.3 * |
| Vitamin C (mg/day) | 75 | 90 | 114.7 | 186.2 | 84.7, 144.8 |
| Calcium (mg/day) | 800 | 1000 | 852.1 | 434.9 | 781.9, 922.2 * |
| Iron (mg/day) | 6 | 8 | 15.4 | 9.5 | 13.8, 16.9 * |
| Magnesium (mg/day) | 400 | 420 | 232.7 | 117.2 | 213.8, 251.6 * |
| Phosphorus (mg/day) | 580 | 700 | 1018.7 | 483.8 | 940.7, 1096.8 * |
| Potassium (mg/day) | 4700 | 4700 | 2201.3 | 933.5 | 2050.7, 2351.9 * |
| Selenium (μg/day) | 45 | 55 | 93.5 | 53.1 | 84.9, 102.1 * |
| Sodium (mg/day) | 1500 | <2300 | 3442.9 | 1361.5 | 3223.3, 3662.6 * |
| Zinc (mg/day) | 9.4 | 11 | 9.7 | 5.5 | 8.8, 10.5 * |
Key: * p < 0.05: Daily Intake compared to MDRI; Protein (%), Carbohydrate (%), Fat (%) = % of total calories for each macronutrient; Daily intake = Average three-day nutrient intake; DRI = Dietary Reference Intake; MDRI = Military Dietary Reference Intake; SD = Standard Deviation; 95% CI = 95% Confidence Interval.