Table 2.
| Nutrient | EAR | RDA | AI |
|---|---|---|---|
| Protein (g/kg) | 0.66 + First trimester: 0.5 g Second: 7.2 g Third: 32 g |
0.83 + First trimester: 1 g Second: 9 g Third: 28 g |
|
| Vitamin A (μg RAE) 1 | 580 | 750 | |
| Thiamin (B1 and mg/MJ) | 0.072 | 0.1 (1.0 mg/d) First trimester: 0.9 mg/d Second: 1.0 mg/d Third: 1.1 mg/d |
|
| Riboflavin (B2 and mg) | 1.5 | 1.9 | |
| Niacin (B3, mg, and NE/MJ) | 1.3 | 1.6 (16 mg NE/d) First trimester: 15 mg NE/d Second: 16 mg NE/d Third: 17 mg NE/d |
|
| Vitamin B6 (mg) | 1.3 | 1.8 | |
| Folate (μg DFE) 2 | 400 | ||
| Vitamin B12 (μg) | 2.4 | 3.3 | |
| Vitamin C (mg) | 85 | ||
| Vitamin D (μg) | 10 | ||
| Vitamin K1 (μg) | 70 | ||
| Calcium (mg) | <20 weeks gestation: 18–24 year: 860 ≥25 year: 750 |
<20 weeks gestation: 18–24 year: 1.000 ≥25 year: 950 |
≥20 weeks gestation: 1.000 |
| Iron (mg) | 7 | 16 | |
| Iodine (μg) | 200 | ||
| Potassium (g) | 3.5 | ||
| Copper (mg) | 0.8 | 1.0 | |
| Magnesium (mg) | 300 | ||
| Zinc (mg) | 7.0 | 9.1 |
EAR = estimated average requirement; RDA = recommended daily allowance; RAE = retinol activity equivalents: 1 μg RAE = 1 μg retinol = 12 μg β-carotene = 24 μg other carotenoids; RE retinal equivalents: 1 μg RAE 1 = 1 μg retinol = 6 μg β-carotene = 12 μg other carotenoids; MJ = megajoules; NE = niacin equivalents: 1 mg NE = 1 mg niacin = 60 mg tryptophan; DFE = dietary folate equivalents: 1 μg DFE = 0.6 μg folic acid from fortified foods or supplement combined with food = 0.5 μg folic acid from supplements taken on an empty stomach. 1 For the dietary reference values, RAE and RE are interchangeable [11,12]. 2 With an additional 400 μg from supplements four weeks prior to conception up to the 10th week of pregnancy.