Soybeans (Sprouted)

Sprouted Soybeans: Nutrition and Guide

This entry represents sprouted soybeans — mature soybeans (Glycine max) that have been germinated in water and allowed to develop sprouts. Unlike the sprouted mung bean (beansprouts of Chinese cooking), soybean sprouts are a distinct product — larger, with a more substantial, slightly chewy texture and a more pronounced, bean-like flavour. Soybean sprouts (kongnamul in Korean) are extremely important in Korean cooking, where they are blanched and dressed as a banchan (side dish), used in kongnamul bap (rice and soybean sprout bowl), and added to soups including soybean sprout soup (kongnamul guk). In China and Japan, soybean sprouts are also eaten, though less prominently than mung bean sprouts. Sprouting soybeans reduces the phytate and trypsin inhibitor content of the raw seed, improving digestibility and nutritional bioavailability, while adding vitamin C through the germination process.

Nutritional Value and Uses

Sprouted soybeans provide 122 kcal and 13.1 g of protein per 100 g — higher in protein than most vegetable sprouts, reflecting soy's exceptional protein density. They provide vitamin C, folate, thiamine, iron, phosphorus, and manganese. In Korean cooking: blanch soybean sprouts in boiling water for five minutes, drain, dress with sesame oil, soy sauce, garlic, and chilli for the classic banchan. Add to jjigae (stew) and guk (broth). Use in bibimbap alongside other seasoned vegetables. For Western applications, treat similarly to beansprouts — add to stir-fries in the final few minutes, use in Asian-inspired salads and grain bowls.

Micronutrients (per 100g, boiled)

NutrientAmount% adult reference intake
Minerals
Iron3 mg20%
Calcium83 mg12%
Magnesium63 mg21%
Potassium510 mg15%
Sodium1 mg0%
Chloride3 mg0%
Phosphorus250 mg45%
Zinc0.9 mg9%
Copper0.32 mg27%
Manganese0.7 mg50%
Iodine2 ug1%
Selenium5 ug7%
Vitamins
Vitamin A1 ug0%
Vitamin CTr (trace).
Vitamin D0 ug0%
Vitamin E1.13 mg28%
Vitamin Knot measured.
Vitamin B1 (thiamin)0.12 mg12%
Vitamin B2 (riboflavin)0.09 mg7%
Vitamin B3 (niacin)2.7 mg16%
Vitamin B5 (pantothenic acid)0.18 mg3%
Vitamin B60.23 mg16%
Vitamin B7 (biotin)25 ug13%
Vitamin B9 (folate)54 ug27%
Vitamin B120 ug0%

Source: CoFID 2021 (McCance and Widdowson, UK), code 13-116 (matched record: "Beans, soya, dried, boiled in unsalted water"). N = present but not quantified; Tr = trace; not measured = no value in the source.

What this food is a source of

These figures are the amount in the food. How much the body absorbs can vary, see each nutrient's entry for detail.