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Can You Eat Bean Sprouts Raw?

author image Owen Pearson
Owen Pearson is a freelance writer who began writing professionally in 2001, focusing on nutritional and health topics. After selling abstract art online for five years, Pearson published a nonfiction book detailing the process of building a successful online art business. Pearson obtained a bachelor's degree in art from the University of Rio Grande in 1997.
Can You Eat Bean Sprouts Raw?
Mung bean sprouts are typically used for salads, sandwiches and wraps. Photo Credit: KatarzynaBialasiewicz/iStock/Getty Images

Bean sprouting refers to the process of soaking beans in water, allowing them to set at room temperature and rinsing them once or twice a day until sprouts form. The number of days required before the sprouts can be eaten depends on type of bean, temperature and humidity, although most beans sprout in two or three days. Advocates of sprouting claim that bean sprouts contain higher concentrations of vitamins and minerals than the beans they come from; however, there is no scientific evidence to support this claim. Eating some raw bean sprouts may pose health risks, but most can be eaten without worry.

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Types of Sprouts

close up of mung bean sprouts
close up of mung bean sprouts Photo Credit: franny-anne/iStock/Getty Images

Mung beans are among the most common types of beans sprouted in the United States -- packaged, fresh, raw mung bean sprouts are commonly available in groceries and health foods stores. Canned mung bean sprouts are also available; however, canning typically involves heat, so canned mung sprouts may not be raw. Lentil and soybean sprouts are also enjoyed by many.

Purported Benefits

Indian salad made with mung bean sprouts
Indian salad made with mung bean sprouts Photo Credit: travellinglight/iStock/Getty Images

Mung bean sprouts may offer high concentrations of phenolic compounds, which are antioxidants, according to an article published in "Revisita de Nutricao." They are also a low-calorie food -- a 1-cup serving of raw mung bean sprouts contains only about 31 calories.

Health Risks

close up of bean sprouts
close up of bean sprouts Photo Credit: BasieB/iStock/Getty Images

Eating raw bean sprouts may increase your risk of bacterial infection. Raw sprouts may become contaminated with bacteria, including Salmonella and E. coli, when beans come in contact with animal manure during growth or storage. The warmth and moisture required to sprout beans provides an environment in which bacteria can easily multiply. Salmonella infection can cause symptoms that include abdominal cramps, nausea, headaches and vomiting. E. coli may produce similar symptoms, and may cause permanent kidney damage in rare cases.

Beans purchased from grocery stores for sprouting may likewise be contaminated. Although tedious, washing the beans with distilled water and a vegetable scrubber before sprouting may reduce the risk of sprout contamination.


raw bean sprouts on placemat
raw bean sprouts on placemat Photo Credit: studionobra/iStock/Getty Images

Children, the elderly and people with impaired immune system function are at the greatest risk of infection from consuming raw bean sprouts. If you choose to consume raw sprouts, refrigerate them at a temperature below 40 degrees Fahrenheit and discard them as soon as they lose their crispness, after about two or three days, to minimize the risk of bacterial infection.

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