Isoflavone Research Initiative

Soy bean
Seeds, dry, 100 g

Caloric values 
of the digestible portion in 100 g edible parts

kJ: 1364
Kcal:322

Main constituents in 100 g edible parts
Water
Protein
Fat

8.5 g
33.7 g
18.1 g

Carbohydrates
Fibres
Minerals

6.1 g*
15.2 g
4.7 g

Single constituents in 100 g edible portion
Minerals
Sodium
Kalium
Magnesium
Calcium
Manganese
Iron
Copper
Zinc
Phosphorus
Chloride
Iodine
Selenium

4 mg
1740 mg
245 mg
255 mg
3 mg
8590 µg
110 µg
1 mg
590 mg
7 mg
6 µg
60 µg

Vitamins
Carotine
Vitamin E
Vitamin K
Vitamin B1
Vitamin B2
Nicotin amide
Pantothenic acid
Vitamin B6
Biotin
Folic acid

380 µg
1500 µg
190 µg
990 µg
520 µg
2510 µg
1920 µg
1190 µg
60 µg
230 µg

Amino acids
Arginine
Histidine
Isoleucine
Leucine
Lysine
Methionine
Phenylalanine
Threonine
Tryptophan
Tyrosine
Valine

2360 mg
830 mg
1780 mg
2840 mg
1900 mg
580 mg
1970 mg
1490 mg
450 mg
1250 mg
1760 mg

Carbohydrates
Glucose
Saccharose

5 mg
6100 mg

Lipids
Palmitic acid
Stearic acid
Oleolic acid
Linolic acid
Linoleic acid

1580 mg
590 mg
3790 mg
8650 mg
1000 m

Other constituents
Purines

380 mg

Foodstuff

Size of serving (g)

Quantity of serving

Protein g/100g

Isoflavones mg/g protein

mg/meal

Soybeans, raw

93

1/2 cup

37.0

5.1

175.6

Soy flour

21

1/4 cup

37.8

5.5

43.8

Soy protein

30

1/4 cup

18.0

5.2

27.8

Soy milk

228

1 cup

4.4

2.0

20.

Tempeh, raw

114

-

17.0

3.1

60.5

Tofu, raw

114

-

15.8

2.1

38.3

Soy isolate

28

-

92.0

2.2

56.5

Soy concentrate

28

-

63.6

0.3

12.4