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. 2018 Jan 22;72(11):1524–1536. doi: 10.1038/s41430-017-0063-0

Table 4.

Daily estimated average requirements, nutrient intakes and probability of adequacy by household member

Pregnant women
Requirementsa Intakesb Probability of adequacy, %
Nutrient EAR (SD) Mean (SD) Median Mean (SD) Median
Pregnant women
Energy, kJ/d 9372 (3056) 8983
Energy, kcal/d 2239 (730) 2146
Protein, g/d 68 (24) 65
Vitamin C, mg/d 40 (4.0) 133 (144) 96 91 (24) 100
Vitamin A, RE 370 (74) 486 (449) 359 17 (25) 7
Thiamin, mg/d 1.2 (0.1) 1.5 (0.7) 1.5 65 (39) 86
Riboflavin, mg/d 1.2 (0.1) 1.1 (0.6) 1.0 20 (34) 0
Niacin, mg/d 14 (2.1) 16 (7.1) 15 54 (36) 53
Vitamin B6, mg/d 1.6 (0.2) 2.2 (0.8) 2.1 79 (33) 99
Folate, µg/d 520 (52) 639 (624) 325 24 (40) 0
Vitamin B12, µg/d 2.2 (0.2) 0.8 (0.9) 0.4 0 (0.0) 0
Iron, mg/dc 22 (2.1) 25 (25) 17 20 (36) 0
Zinc, mg/dd 12 (1.5) 11 (4.0) 11 29 (33) 10
Calcium, mg/de 800 (100) 654 (462) 505 14 (31) 0
Mean PA 37 (20) 36
Mothers-in-law
Energy, kJ/d 9326 (3324) 9163
Energy, kcal/d 2228 (794) 2189
Protein, g/d 67 (28) 65
Vitamin C, mg/d 30 (3.0) 138 (136) 98 96 (17) 100
Vitamin A, RE 270 (54) 511 (646) 333 40 (38) 29
Thiamin, mg/d 0.9 (0.1) 1.5 (0.7) 1.4 88 (28) 100
Riboflavin, mg/d 0.9 (0.1) 1.0 (0.6) 0.9 39 (41) 17
Niacin, mg/d 11 (1.7) 16 (7.2) 16 79 (32) 99
Vitamin B6, mg/d 1.1 (0.1) 2.2 (0.8) 2.1 100 (0) 100
Folate, µg/d 320 (32) 350 (165) 325 34 (38) 14
Vitamin B12, µg/d 2 (0.2) 0.6 (2.1) 0.3 0 (0) 0
Iron, mg/dc 15 (7) 14 2.7 (7.6) 0
Zinc, mg/dd 7 (0.9) 11 (5) 11 87 (28) 100
Calcium, mg/de 800 (100) 511 (277) 434 6.2 (20) 0
Mean PA 52 (16) 51
Male household heads
Energy, kJ/d 11,892 (3692) 12,085
Energy, kcal/d 2841 (882) 2887
Protein, g/d 87 (29) 84
Vitamin C, mg/d 40 (4.0) 128 (105) 91 90 (27) 100
Vitamin A, RE 300 (60) 502 (402) 355 45 (38) 36
Thiamin, mg/d 1 (0.1) 2.0 (1.0) 1.9 95 (19) 100
Riboflavin, mg/d 1 (0.1) 1.3 (0.7) 1.2 65 (40) 88
Niacin, mg/d 12 (1.8) 22 (9.8) 21 95 (17) 100
Vitamin B6, mg/d 1.1 (0.1) 2.8 (1.0) 2.7 99 (9) 100
Folate, µg/d 320 (32) 402 (158) 385 60 (41) 77
Vitamin B12, µg/d 2 (0.2) 0.9 (1.2) 0.6 2.7 (15) 0.0
Iron, mg/dc 19 (6.7) 19 25 (24) 20
Zinc, mg/dd 15 (1.9) 14 (4.7) 14 29 (31) 16
Calcium, mg/de 800 (100) 686 (407) 597 16 (32) 0.1
Mean PA 57 (17) 60

a EARs using WHO/FAO values (33), unless otherwise stated

b Intakes reported as mean intakes, averaged across the three dietary recalls

c Institute of Medicine values for iron (35). We assumed low bioavailability of iron (5%), except for iron in pregnant women who have higher absorption (23%) during pregnancy. Iron probabilities of adequacy for mothers-in-law and men were calculated using a table of probabilities for different intervals of usual intakes, adapted from IOM but assuming 5% bioavailability

d Based on International Zinc Nutrition Consultative Group (IZiNCG) recommendations (36). We assumed a low bioavailability of zinc (25% absorption for women; 18% for men)

e Institute of Medicine values for calcium (34).