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Nutrient (Amount/1,000 kcal ME)b
Minimum
Maximum
Recommended Allowance
Protein (g)
40
50
Arginine (g)
1.93
Histidine (g)
0.65
Isoleucine (g)
1.08
Leucine (g)
2.55
Lysine (g)
0.68
0.85
Methionine (g)
0.34
0.43
Methionine + cystine (g)
Phenylalanine (g)
1.00
Phenylalanine + tyrosine (g)
3.83
Threonine (g)
1.30
Tryptophan (g)
0.33
Valine (g)
1.28
Taurine (g)
0.080
0.10
Fat (g)
82.5
22.5
Linoleic acid (g)
13.8
1.4
Arachidonic acid (g)
0.5
0.015
Eicosapentaenoic + docosahexaenoic acid (g)
0.025
Minerals
Calcium (g)
0.40
0.72
Phosphorus (g)
0.35
0.64
Potassium (g)
1.3
Sodium (mg)
160
170
Chloride (mg)
240
Magnesium (mg)
100
Iron (mg)
20
Copper (mg)
1.2
Manganese (mg)
Zinc (mg)
18.5
Iodine (mcg)
320
350
Selenium (mcg)
75
Vitamins
Vitamin A (retinol equivalents)
25,000
250
Cholecalciferol (mcg)
188
1.75
Vitamin E (α-tocopherol, mg)
10
Vitamin K (menadione, mg)
0.25
Thiamine (mg)
1.40
Riboflavin (mg)
1.0
Pantothenic acid (mg)
1.15
1.44
Niacin (mg)
10.0
Pyridoxine (mg)
0.625
Folic acid (mcg)
150
Vitamin B12 (mcg)
5.6
Choline (mg)
510
637
a Reprinted with permission from the National Academies Press, copyright 2006, National Academy of Sciences.
b ME = metabolizable energy
