Mung Beans: Nutrition, Moong Dal and Bean Sprout Safety

Mung beans are small, olive-green beans used across Asian cooking: whole in soups and stews, split and hulled as yellow moong dal, ground into batters, turned into clear cellophane noodles, and, most familiar in the US, sprouted into the crunchy bean sprouts of stir-fries and pho. Each form has a very different nutrition profile. In USDA data a cup of boiled mung beans has 15.4 grams of fiber and 80% of the Daily Value for folate, while a cup of raw sprouts is light and watery. This guide covers mung beans nutrition by form, how they compare with other legumes, and the food safety facts about raw mung bean sprouts.

Peptide Labs does not sell mung beans or mung bean products. This article is general nutrition information, not medical advice.

What are mung beans?

Mung beans are a legume sold in several forms. The Dietary Guidelines for Americans 2020-2025 place cooked mung beans in the beans, peas and lentils subgroup and “sprouted beans (e.g. sprouted mung beans)” with other vegetables, a useful hint that the two foods behave very differently nutritionally.

• Whole mung beans: green-skinned, cooked into soups, curries, porridges and sweet dessert soups.
• Moong dal: split, hulled mung beans that are yellow inside and cook down quickly into a soft dal.
• Bean sprouts: germinated mung beans with white shoots, eaten raw or cooked.
• Cellophane noodles: clear noodles made from mung bean starch, also called glass noodles or bean threads.

Mung beans nutrition by form

Values come from the USDA FoodData Central SR Legacy database, one cup per entry, with %DV based on FDA reference values. FDC IDs are in brackets. SR Legacy has no separate entry for split moong dal; it is the same seed with the skin removed, so use the boiled whole bean row as the closest match and check the package label for exact numbers.

Boiled mung beans are the nutrition heavyweight: high in fiber, folate and plant protein, with magnesium at 97 milligrams per cup (23% DV) and thiamin at 28% DV in USDA data. Sprouts are a low-calorie vegetable that adds crunch and some vitamin C and folate. Canned sprouts lose most of their vitamin C and folate in the USDA entry. Cellophane noodles are almost pure starch: a cup of the dry noodles lists 491 calories and essentially no protein or fiber, so they eat more like rice noodles than like beans.

Mung beans vs other legumes

Mung beans sit close to lentils on fiber and folate, though lentils carry more iron. They have fewer calories per cup than chickpeas, mostly because chickpeas contain more fat. Read more in our guides to lentils, lima beans, chickpeas, black beans and edamame. For wider lists, see protein-rich foods, iron sources and high-fiber foods; our methylfolate guide explains folate from food versus folic acid.

Mung bean sprouts: the food safety facts

Raw sprouts carry a food safety risk that has nothing to do with the bean itself. FDA explains that sprouts are grown from seeds and beans under warm and humid conditions, which are also ideal for bacteria such as Salmonella, Listeria and E. coli. Its produce guidance says people more vulnerable to foodborne illness should avoid raw or lightly cooked sprouts of any kind, and it names mung bean sprouts. The Dietary Guidelines also tell pregnant and breastfeeding women to take special care not to eat raw sprouts.

• Real outbreaks: in October and November 2011, Germany recorded its largest ever Salmonella Newport outbreak, 106 cases plus 20 in the Netherlands. In the investigation, only sprout consumption was significantly linked to illness, and patient isolates matched a mung bean sprout sample traced to a Dutch producer.
• Retail testing: a 2011 survey of 554 bean sprout and sprouted seed samples on sale in England and Northern Ireland found Salmonella in four mung bean sprout samples, two of them sold as ready-to-eat with “rinse and serve” labels.
• Rinsing is not enough: a 1998 lab study found E. coli O157 inside the tissues of sprouts grown from contaminated seed, where washing the surface did not kill it. FDA’s guidance is that cooking produce thoroughly kills harmful bacteria.
• Practical steps: choose sprouts that look crisp and are kept refrigerated, keep them cold at home, and add them to hot dishes long enough to cook through rather than as a raw garnish if you or the people you cook for are in a higher-risk group.

Are mung beans healthy?

Cooked mung beans are a nutrient-dense legume: high in fiber, folate and plant protein, with useful magnesium, thiamin and iron, and very little fat. Many health claims you may see online, such as special effects on cholesterol, blood sugar or “cooling” the body, come from traditional use, lab work or small studies, and this guide does not repeat them. A few practical notes:

• Gas: the NIDDK lists legumes among foods that may lead to extra gas. Many people add beans to their meals gradually; see our gas and bloating guide.
• Allergy: mung beans are not one of the nine major food allergens on US labels, but any food can cause a reaction, and severe symptoms need urgent care.
• Raw beans: dried mung beans are cooked before eating; our lectins guide explains why beans in general are not eaten raw.
• Balanced plates: our GLP-1 diet guide covers how fiber- and protein-rich foods such as beans fit into meals.

How to cook mung beans and moong dal

• Whole mung beans: rinse and pick over, optionally soak, then simmer until soft; they cook faster than most larger beans.
• Moong dal: rinse until the water runs clearer, then simmer with spices until it breaks down into a thick, soupy dal.
• Sprouts: stir-fry, blanch or add to hot soup; the USDA stir-fried entry keeps the most vitamin C of the sprout forms listed.
• Noodles: soak or boil cellophane noodles per the package, and pair them with vegetables and a protein food, since the noodles themselves add little beyond starch.

Frequently Asked Questions

Questions about a label? Contact us or read our Buyer’s Guide. Food comes first; follow the label and ask a healthcare provider before starting a supplement, especially if you take medicines, are pregnant or have a food allergy. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Last reviewed October 2026.

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