TABLE 9-1 Estimated Secretion of Nutrients in Mature Human Milk Compared with Increments in Recommended Dietary Allowances (RDAs) for Lactating Women

A. Energy, Protein, and Fat-Soluble Vitamins

Measure

Energy, kcal

Protein, g

Vitamin A, µg REa

Vitamin D, µg

Vitamin E, mg of α-TEb

Vitamin K, µg

Estimated secretion in milkc Increment in RDAsd,e for the following periods of lactation:

420–9700

6.3–10.5

400–670

0.3–0.6

1.4–2.3

1.3–2.1

0–6 mo

500

15

500

5

4

0

6–12 mo

500

12

400

5

3

0

Comments

Estimated 80% efficiency in conversion to milk energy

Estimated 70% efficiency in conversion to milk protein

None

Increment advised in part to maintain calcium balance

Estimated 75% absorption

No increment listed because intakes usually exceed RDA



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