United States Department of Agriculture
Agricultural Research Service

National Nutrient Database for Standard Reference Legacy Release
Statistics Report:  12155, Nuts, walnuts, english a  b 
heading Nutrient Unit Value (100g) Data Points Std. Error Min Max df LB UB # Studies Source NDB Ref Last Modified
Proximates Water 1 g 4.07 7 0.150 3.46 4.51 6.0 3.69 4.44 1 Analytical or derived from analytical -- 12/01/2000
Proximates Energy kcal 654 -- -- 0 0 -- -- -- -- Calculated or imputed -- 03/01/2006
Proximates Energy kJ 2738 -- -- 0 0 -- -- -- -- Calculated or imputed -- 03/01/2006
Proximates Protein 1 g 15.23 7 0.230 14.4 16 6.0 14.64 15.81 1 Analytical or derived from analytical -- 12/01/2000
Proximates Total lipid (fat) 1 g 65.21 7 0.490 63.5 66.9 6.0 64.0 66.42 1 Analytical or derived from analytical -- 12/01/2000
Proximates Ash 1 g 1.78 7 0.010 1.71 1.88 6.0 1.73 1.82 1 Analytical or derived from analytical -- 12/01/2000
Proximates Carbohydrate, by difference g 13.71 -- -- 0 0 -- -- -- -- Calculated or imputed -- 03/01/2006
Proximates Fiber, total dietary 1 g 6.7 7 0.500 4.7 9.2 6.0 5.3 8.0 1 Analytical or derived from analytical -- 12/01/2000
Proximates Sugars, total g 2.61 7 0.090 0 0 -- -- -- -- Analytical or derived from analytical -- 08/01/2002
Proximates Sucrose 1 g 2.43 7 0.080 2.2 2.9 6.0 2.21 2.64 1 Analytical or derived from analytical -- 12/01/2000
Proximates Glucose (dextrose) 1 g 0.08 7 0.010 0.04 0.15 6.0 0.04 0.11 1 Analytical or derived from analytical -- 12/01/2000
Proximates Fructose 1 g 0.09 7 0.010 0.04 0.12 6.0 0.06 0.11 1 Analytical or derived from analytical -- 12/01/2000
Proximates Lactose 1 g 0.00 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Proximates Maltose 1 g 0.00 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Proximates Starch 1 g 0.06 7 0.010 0.01 0.09 6.0 0.03 0.08 1 Analytical or derived from analytical -- 12/01/2000
Minerals Calcium, Ca 1 mg 98 7 3.000 86 110 6.0 90.0 104.0 1 Analytical or derived from analytical -- 03/01/2001
Minerals Iron, Fe 1 mg 2.91 7 0.080 2.6 3.2 6.0 2.7 3.12 1 Analytical or derived from analytical -- 12/01/2000
Minerals Magnesium, Mg 1 mg 158 7 1.000 154 164 6.0 154.0 160.0 1 Analytical or derived from analytical -- 12/01/2000
Minerals Phosphorus, P 1 mg 346 7 3.000 340 360 6.0 336.0 354.0 1 Analytical or derived from analytical -- 12/01/2000
Minerals Potassium, K 1 mg 441 7 6.000 415 470 6.0 425.0 456.0 1 Analytical or derived from analytical -- 12/01/2000
Minerals Sodium, Na 1 mg 2 7 0.000 0 7 6.0 -- 4.0 1 Analytical or derived from analytical -- 12/01/2000
Minerals Zinc, Zn 1 mg 3.09 7 0.080 2.8 3.4 6.0 2.88 3.28 1 Analytical or derived from analytical -- 12/01/2000
Minerals Copper, Cu 1 mg 1.586 7 0.026 1.5 1.7 6.0 1.522 1.65 1 Analytical or derived from analytical -- 12/01/2000
Minerals Manganese, Mn 1 mg 3.414 7 0.122 3.1 3.9 6.0 3.115 3.714 1 Analytical or derived from analytical -- 12/01/2000
Minerals Selenium, Se 2, 3 µg 4.9 6 0.400 3.8 6.3 5.0 3.8 5.9 2 Analytical or derived from analytical -- 10/01/2002
Vitamins Vitamin C, total ascorbic acid 1 mg 1.3 7 0.100 1 2 6.0 0.8 1.7 1 Analytical or derived from analytical -- 12/01/2000
Vitamins Thiamin 1 mg 0.341 7 0.010 0.31 0.39 6.0 0.318 0.365 1 Analytical or derived from analytical -- 12/01/2000
Vitamins Riboflavin 1 mg 0.150 7 0.003 0.14 0.16 6.0 0.142 0.158 1 Analytical or derived from analytical -- 12/01/2000
Vitamins Niacin 2, 3 mg 1.125 8 0.055 0.95 1.44 3.0 0.952 1.299 2 Analytical or derived from analytical -- 10/01/2002
Vitamins Pantothenic acid 1 mg 0.570 7 0.011 0.54 0.62 6.0 0.544 0.596 1 Analytical or derived from analytical -- 12/01/2000
Vitamins Vitamin B-6 1 mg 0.537 7 0.026 0.43 0.59 6.0 0.474 0.6 1 Analytical or derived from analytical -- 12/01/2000
Vitamins Folate, total 1 µg 98 7 3.000 81 113 6.0 88.0 107.0 1 Analytical or derived from analytical -- 12/01/2000
Vitamins Folic acid µg 0 -- -- 0 0 -- -- -- -- Assumed zero -- 12/01/2000
Vitamins Folate, food µg 98 7 3.000 81 113 6.0 88.0 107.0 1 Analytical or derived from analytical -- 03/01/2006
Vitamins Folate, DFE µg 98 -- -- 0 0 -- -- -- -- Calculated or imputed -- 03/01/2006
Vitamins Choline, total 2, 3 mg 39.2 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Vitamins Betaine 2, 3 mg 0.3 5 0.019 0.2 0.3 3.0 0.2 0.3 2 Analytical or derived from analytical -- 03/01/2006
Vitamins Vitamin B-12 µg 0.00 -- -- 0 0 -- -- -- -- Assumed zero -- 09/01/1984
Vitamins Vitamin B-12, added µg 0.00 -- -- 0 0 -- -- -- -- Assumed zero -- 09/01/2004
Vitamins Vitamin A, RAE 1, 2, 3 µg 1 6 0.000 0 4 5.0 -- 2.0 3 Analytical or derived from analytical -- 10/01/2002
Vitamins Retinol µg 0 -- -- 0 0 -- -- -- -- Assumed zero -- 04/01/2002
Vitamins Carotene, beta 1, 2, 3 µg 12 6 7.000 0 46 5.0 -6.0 31.0 3 Analytical or derived from analytical -- 10/01/2002
Vitamins Carotene, alpha 1, 2, 3 µg 0 6 0.000 0 0 5.0 -- -- 3 Analytical or derived from analytical -- 10/01/2002
Vitamins Cryptoxanthin, beta 2, 3 µg 0 3 0.000 0 0 -- -- -- 2 Analytical or derived from analytical -- 10/01/2002
Vitamins Vitamin A, IU 1, 2, 3 IU 20 6 12.000 0 77 5.0 -11.0 52.0 3 Analytical or derived from analytical -- 10/01/2002
Vitamins Lycopene 2, 3 µg 0 3 0.000 0 0 -- -- -- 2 Analytical or derived from analytical -- 10/01/2002
Vitamins Lutein + zeaxanthin 2, 3 µg 9 3 0.000 8 11 1.0 6.0 11.0 2 Analytical or derived from analytical -- 10/01/2002
Vitamins Vitamin E (alpha-tocopherol) 1, 4 mg 0.70 13 0.320 0.14 1.56 1.0 -3.38 4.78 2 Analytical or derived from analytical -- 03/01/2001
Vitamins Vitamin E, added mg 0.00 -- -- 0 0 -- -- -- -- Assumed zero -- 09/01/2004
Vitamins Tocopherol, beta 1, 4 mg 0.15 13 0.140 0 0.3 1.0 -1.69 2.0 2 Analytical or derived from analytical -- 03/01/2001
Vitamins Tocopherol, gamma 1, 4 mg 20.83 13 2.600 15.47 27 1.0 -12.31 53.98 2 Analytical or derived from analytical -- 03/01/2001
Vitamins Tocopherol, delta 1, 4 mg 1.89 13 0.460 1.26 2.8 1.0 -4.03 7.81 2 Analytical or derived from analytical -- 03/01/2001
Vitamins Vitamin D (D2 + D3) µg 0.0 -- -- 0 0 -- -- -- -- Assumed zero -- 03/01/2009
Vitamins Vitamin D IU 0 -- -- 0 0 -- -- -- -- Assumed zero -- 03/01/2009
Vitamins Vitamin K (phylloquinone) 2, 3 µg 2.7 8 0.200 1 4.6 6.0 2.0 3.2 2 Analytical or derived from analytical -- 10/01/2002
Lipids Fatty acids, total saturated g 6.126 -- -- 0 0 -- -- -- -- Calculated or imputed -- 03/01/2006
Lipids 4:0 g 0.000 -- -- 0 0 -- -- -- -- Assumed zero -- 02/01/1995
Lipids 6:0 g 0.000 -- -- 0 0 -- -- -- -- Assumed zero -- 02/01/1995
Lipids 8:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 10:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 12:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 13:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 14:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 15:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 16:0 1 g 4.404 7 0.095 4.12 4.9 6.0 4.172 4.636 1 Analytical or derived from analytical -- 12/01/2000
Lipids 17:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 18:0 1 g 1.659 7 0.035 1.58 1.85 6.0 1.575 1.744 1 Analytical or derived from analytical -- 12/01/2000
Lipids 20:0 1 g 0.063 7 0.000 0.06 0.06 6.0 0.062 0.064 1 Analytical or derived from analytical -- 12/01/2000
Lipids 22:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 24:0 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids Fatty acids, total monounsaturated g 8.933 -- -- 0 0 -- -- -- -- Calculated or imputed -- 03/01/2006
Lipids 14:1 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 16:1 undifferentiated 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 18:1 undifferentiated 1 g 8.799 7 0.138 8.39 9.27 6.0 8.46 9.137 1 Analytical or derived from analytical -- 12/01/2000
Lipids 20:1 1 g 0.134 7 0.008 0.12 0.18 6.0 0.114 0.154 1 Analytical or derived from analytical -- 12/01/2000
Lipids 22:1 undifferentiated 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 24:1 c 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids Fatty acids, total polyunsaturated g 47.174 -- -- 0 0 -- -- -- -- Calculated or imputed -- 03/01/2006
Lipids 18:2 undifferentiated 1 g 38.093 7 0.304 37.22 39.23 6.0 37.35 38.837 1 Analytical or derived from analytical -- 03/01/2001
Lipids 18:3 undifferentiated 1 g 9.080 7 0.179 8.6 9.98 6.0 8.642 9.519 1 Analytical or derived from analytical -- 03/01/2001
Lipids 18:4 g 0.000 -- -- 0 0 -- -- -- -- Assumed zero -- 05/01/1999
Lipids 20:2 n-6 c,c 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 20:3 undifferentiated 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 20:4 undifferentiated 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 20:5 n-3 (EPA) 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 22:5 n-3 (DPA) 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids 22:6 n-3 (DHA) 1 g 0.000 7 0.000 0 0 6.0 -- -- 1 Analytical or derived from analytical -- 12/01/2000
Lipids Cholesterol mg 0 -- -- 0 0 -- -- -- -- Assumed zero -- 09/01/1984
Lipids Stigmasterol 2 mg 0 4 0.000 0 0 -- -- -- 1 Analytical or derived from analytical -- 05/01/2011
Lipids Campesterol 2 mg 5 4 0.000 5 5 3.0 4.0 5.0 1 Analytical or derived from analytical -- 05/01/2011
Lipids Beta-sitosterol 2 mg 87 4 3.000 82 95 3.0 77.0 96.0 1 Analytical or derived from analytical -- 05/01/2011
Amino Acids Tryptophan 1 g 0.170 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Threonine 1 g 0.596 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Isoleucine 1 g 0.625 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Leucine 1 g 1.170 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Lysine 1 g 0.424 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Methionine 1 g 0.236 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Cystine 1 g 0.208 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Phenylalanine 1 g 0.711 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Tyrosine 1 g 0.406 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Valine 1 g 0.753 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Arginine 1 g 2.278 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Histidine 1 g 0.391 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Alanine 1 g 0.696 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Aspartic acid 1 g 1.829 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Glutamic acid 1 g 2.816 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Glycine 1 g 0.816 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Proline 1 g 0.706 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Amino Acids Serine 1 g 0.934 -- -- 0 0 -- -- -- -- Analytical or derived from analytical -- 03/01/2006
Other Alcohol, ethyl g 0.0 -- -- 0 0 -- -- -- -- Assumed zero -- 04/01/1985
Other Caffeine mg 0 -- -- 0 0 -- -- -- -- Assumed zero -- 09/01/1999
Other Theobromine mg 0 -- -- 0 0 -- -- -- -- Assumed zero -- 09/01/1999
Anthocyanidins Cyanidin 5 mg 2.7 6 0.25 2.11 3.74 -- -- -- -- -- --
Anthocyanidins Petunidin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Anthocyanidins Delphinidin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Anthocyanidins Malvidin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Anthocyanidins Pelargonidin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Anthocyanidins Peonidin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Flavan-3-ols (+)-Catechin 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavan-3-ols (-)-Epigallocatechin 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavan-3-ols (-)-Epicatechin 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavan-3-ols (-)-Epicatechin 3-gallate 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavan-3-ols (-)-Epigallocatechin 3-gallate 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavan-3-ols (+)-Gallocatechin 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavanones Hesperetin 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavanones Naringenin 5 mg 0.0 4 0 0 0 -- -- -- -- -- --
Flavones Apigenin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Flavones Luteolin 5 mg 0.0 2 -- 0 0 -- -- -- -- -- --
Flavonols Myricetin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Flavonols Quercetin 5 mg 0.0 6 0 0 0 -- -- -- -- -- --
Isoflavones Daidzein 7, 8 mg 0.02 2 -- 0 0.04 -- -- -- -- -- --
Isoflavones Genistein 7, 8 mg 0.01 2 -- 0 0.02 -- -- -- -- -- --
Isoflavones Glycitein 8 mg 0.00 1 -- 0 0 -- -- -- -- -- --
Isoflavones Total isoflavones 7, 8 mg 0.02 2 -- 0 0.05 -- -- -- -- -- --
Isoflavones Formononetin mg 0.00 1 -- 0 0 -- -- -- -- -- --
Isoflavones Coumestrol mg 0.00 1 -- 0 0 -- -- -- -- -- --
Proanthocyanidin Proanthocyanidin dimers 6 mg 5.7 8 0.89 4.02 6.63 -- -- -- -- -- --
Proanthocyanidin Proanthocyanidin trimers 6 mg 7.2 8 1.16 5.04 8.49 -- -- -- -- -- --
Proanthocyanidin Proanthocyanidin 4-6mers 6 mg 22.1 8 3.31 16.64 26.14 -- -- -- -- -- --
Proanthocyanidin Proanthocyanidin 7-10mers 6 mg 5.4 8 0.81 4.2 6.54 -- -- -- -- -- --
Proanthocyanidin Proanthocyanidin polymers (>10mers) 6 mg 20.0 8 9.27 5.34 39.43 -- -- -- -- -- --

Sources of Data

1California Walnut Commission Nutrient Content of Walnuts , 1999  Modesto CA  
2Nutrient Data Laboratory, ARS, USDA National Food and Nutrient Analysis Program Wave 5g , 2001  Beltsville MD  
3Nutrient Data Laboratory, ARS, USDA National Food and Nutrient Analysis Program Wave 5e , 2001  Beltsville MD  
4Nutrient Data Laboratory, ARS, USDA NDL Report Vitamin E 1997 , 1997  Beltsville MD  
5Harnly, J. M., Doherty, R., Beecher, G. R., Holden, J. M., Haytowitz, D. B., and Bhagwat, S., and Gebhardt S.  Flavonoid content of U.S. fruits, vegetables, and nuts , 2006 J. Agric. Food Chem. 54   pp.9966-9977
6Gu, L., Kelm, M.A., Hammerstone, J.F., Beecher, G., Holden, J., Haytowitz, D., Gebhardt, S., and Prior, R.L. Concentrations of proanthocyanidins in common foods and estimations of normal consumption , 2004 J. Nutr. 134   pp.613-617
7Liggins, J., Bluck, L. J. C., Runswick, S., Atkinson, C., Coward, W. A., Bingham, S. A.  Daidzein and genistein content of fruits and nuts. , 2000 J. Nutr. Biochem. 11   pp.326-331
8Thompson, L. U., Boucher, B. A., Liu, Z., Cotterchio, M., and Kreiger, N.  Phytoestrogen content of foods consumed in Canada, including isoflavones, lignans, and coumestan. , 2006 Nutr. Cancer 54   pp.184-201

Footnotes
a  Unroasted
b  Other phytosterols total 18.2 mg/100g; these include delta 5-avenasterol (7.3), campestanol (2.3), and other minor phytosterols (8.6 mg).