Found a more complete listing for milk...
Typical Composition for Skim Milk Powder
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Lactose
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49.5 - 52.0%
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Protein
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34.0-37.0%
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Ash
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8.2-8.6%
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Moisture
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3.0-4.0%
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Fat
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0.6-1.25%
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Minerals (mg/100 g)
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Calcium
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1248.00
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Sodium
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494.00
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Potassium
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1674.00
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Phosphorus
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993.00
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Iron
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0.40
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Magnesium
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110.00
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Zinc
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4.08
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Essential Amino Acids (g/100 g Protein)
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Isoleucine
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2.19
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Leucine
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3.54
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Lysine
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2.87
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Methionine
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0.91
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Phenylalanine
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1.75
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