Composition of Human Milk






Table A-1

Composition of Human Colostrum and Mature Breast Milk


























































































































































































































































































































Constituent (per 100 mL) Colostrum 1-5 Days Mature Milk > 30 Days
Energy (kcal) 58 70
Total solids (g) 12.8 12.0
Lactose (g) 5.3 7.3
Total nitrogen (mg) 360 171
Protein nitrogen (mg) 313 129
Nonprotein nitrogen (mg) 47 42
Total protein (g) 2.3 0.9
Casein (mg) 140 187
α-Lactalbumin (mg) 218 161
Lactoferrin (mg) 330 167
IgA (mg) 364 142
Amino acids (total)
Alanine (mg) 52
Arginine (mg) 126 49
Aspartate (mg) 110
Cystine (mg) 25
Glutamate (mg) 196
Glycine (mg) 27
Histidine (mg) 57 31
Isoleucine (mg) 121 67
Leucine (mg) 221 110
Lysine (mg) 163 79
Methionine (mg) 33 19
Phenylalanine (mg) 105 44
Proline (mg) 89
Serine (mg) 54
Threonine (mg) 148 58
Tryptophan (mg) 52 25
Tyrosine (mg) 38
Valine (mg) 169 90
Taurine (free) (mg) 8
Urea (mg) 10 30
Creatine (mg) 3.3
Total fat (g) 2.9 4.2
Fatty acids (% total fat)
12:0 tauric 1.8 5.8
14:0 myristic 3.8 8.6
16:0 palmitic 26.2 21.0
18:0 stearic 8.8 8.0
18:1 oleic 36.6 35.5
18:2, n-6 linoleic 6.8 7.2
18:3, n-3 linolenic 1.0
C 20 and C 22 polyunsaturated 10.2 2.9
Cholesterol (mg) 27 16
Vitamins
Fat soluble
Vitamin A (retinol equivalents) (mcg) 89 67
β-Carotene (mcg) 112 23
Vitamin D (mcg) 0.05
Vitamin E (total tocopherols) (mcg) 1280 315
Vitamin K (mcg) 0.23 0.21
Water soluble
Thiamin (mcg) 15 21
Riboflavin (mcg) 25 35
Niacin (mcg) 75 150
Folic acid (mcg) 8.5
Vitamin B 6 (mcg) 12 93
Biotin (mcg) 0.1 0.6
Pantothenic acid (mcg) 183 180
Vitamin B 12 (ng) 200 26
Ascorbic acid (mg) 4.4 4.0
Minerals
Calcium (mg) 23 28
Magnesium (mg) 3.4 3.0
Sodium (mg) 48 18
Potassium (mg) 74 58
Chlorine (mg) 91 42
Phosphorus (mg) 14 15
Sulfur (mg) 22 14
Trace elements
Chromium (ng) 50
Cobalt (mcg) 1
Copper (mcg) 46 25
Fluorine (mcg) 16
Iodine (mcg) 12 11
Iron (mcg) 45 40
Manganese (mcg) 0.6 ±
Nickel (mcg) 2
Selenium (mcg) 2.0
Zinc (mcg) 540 120

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Jul 13, 2019 | Posted by in PEDIATRICS | Comments Off on Composition of Human Milk
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