TABLE 9-3, Estimated Mean Nutrient Intakes by U.S. Women at Three Energy Levels Compared with the Recommended Dietary Allowances (RDAs) for Lactation - Nutrition During Lactation

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A. Protein and Fat-Soluble Vitamins
Measure	Protein, g	Vitamin A, µg of RE^a	Vitamin D, µg	Vitamin E, mg of α-TE^b	Vitamin K, µg
Average nutrient density of diets of U.S. women aged 19 to 50 yr^d (nutrient content per 1,000 kcal)	40	805	NR^c	5	NR
Nutrient intake assuming average nutrient density at:
2,700 kcal	108	2,174	NA^e	14	NA
2,200 kcal	88	1,771	NA	11	NA
1,800 kcal	72	1,449	NA	9	NA
RDA for lactation^f
0–6 mo	65	1,300	10	12	65
6–12 mo	62	1,200	10	11	65

B. Water-Soluble Vitamins
Measure	Vitamin C, mg	Thiamin, mg	Riboflavin, mg	Niacin, mg of NE	Vitamin B₆, mg	Folate, µg	Vitamin B₁₂, µg
Average nutrient density of diets of U.S. women aged 19 to 50 yr^d (nutrient content per 1,000 kcal)	56	0.7	0.9	11.2	0.8	13.7	2.9
Nutrient intake assuming average nutrient density at:
2,700 kcal	151	1.9	2.4	30.2	2.2	370	7.8
2,200 kcal	123	1.5	2.0	24.6	1.8	301	6.4
1,800 kcal	101	1.3	1.6	20.2	1.4	247	5.2
RDA for lactation^f
0–6 mo	95	1.6	1.8	20	2.1	280	2.6
6–12 mo	90	1.6	1.7	20	2.1	260	2.6
C. Minerals
Measure	Calcium, mg	Phosphorus, mg	Magnesium, mg	Iron, mg	Zinc, mg	Iodine, µg	Selenium, µg
Average nutrient density of diets of U.S. women aged 19 to 50 yr^d (nutrient content per 1,000 kcal)	397	645	143	7.0	5.8	145^g	3.5^g
Nutrient intake assuming average nutrient density at:
2,700 kcal	1,072	1,742	386	18.9	15.7	392	95
2,200 kcal	873	1,419	315	15.4	12.8	319	77
1,800 kcal	715	1,161	257	12.6	10.4	261	63
RDA for lactation^f
0–6 mo	1,200	1,200	355	15	19	200	75
6–12 mo	1,200	1,200	340	15	16	200	75

a: RE = Retinol equivalents.
b: -TE = -Tocopherol equivalents.
c: NR = Not reported.
d: From Continuing Survey of Food Intake by Individuals, Wave I, USDA (1987).
e: NA = Not applicable.
f: Assumes 2,700 kcal of energy per day, from NRC (1989).
g: Estimated from the Total Diet Study, Pennington et al. (1989).

Nutrition During Lactation.

Institute of Medicine (US) Committee on Nutritional Status During Pregnancy and Lactation.

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