What Are Legumes?
Legumes are a group of plants that produce seeds inside pods.
Common legumes include:
- Beans
- Lentils
- Chickpeas
- Peas
- Soybeans
- Peanuts
Legumes are an important part of many traditional diets around the world.
They can provide protein, carbohydrates, fiber, vitamins, minerals, and other nutrients, depending on the specific food.
Because legumes can be used in so many different meals, understanding them can make it easier to build varied and balanced eating patterns.
What Foods Are Considered Legumes?
Some of the most familiar legumes include:
- Black beans
- Kidney beans
- Chickpeas
- Lentils
- Soybeans
- Green peas
- Split peas
- Navy beans
- Pinto beans
- Peanuts
Although peanuts are commonly grouped with nuts in everyday food conversations, botanically they are legumes.
Are Beans Legumes?
Yes.
Beans are one of the largest groups within the legume family.
Examples include:
- Black beans
- Kidney beans
- Pinto beans
- Navy beans
- Cannellini beans
- Adzuki beans
Different beans have different flavors, textures, colors, and nutrient profiles.
Are Lentils Legumes?
Yes.
Lentils are legumes that come in several varieties.
Common types include:
- Green lentils
- Brown lentils
- Red lentils
- Black lentils
Lentils are particularly useful in soups, stews, curries, salads, and grain-based meals.
Are Chickpeas Legumes?
Yes.
Chickpeas, also known as garbanzo beans, are legumes.
They can be used in:
- Hummus
- Salads
- Curries
- Soups
- Roasted snacks
- Grain bowls
Chickpeas provide a combination of protein, carbohydrates, and fiber.
Are Peas Legumes?
Yes.
Peas are legumes even though they are often eaten and prepared like vegetables.
Examples include:
- Green peas
- Split peas
This is a useful reminder that botanical classification and everyday food classification are not always the same.
Are Peanuts Legumes?
Yes.
Peanuts are botanically legumes.
However, they are nutritionally and culturally often discussed alongside nuts because they are rich in fat and protein and are commonly eaten in similar ways.
Peanuts can provide:
- Protein
- Unsaturated fats
- Fiber
- Various vitamins and minerals
People with peanut allergies should avoid peanuts and products containing them according to appropriate medical guidance.
What Nutrients Do Legumes Provide?
Legumes can provide a wide range of nutrients.
Depending on the specific legume, they may contain:
- Protein
- Carbohydrates
- Fiber
- Iron
- Folate
- Magnesium
- Potassium
- Zinc
- Other vitamins and minerals
This combination is one reason legumes appear frequently in balanced eating patterns.
Are Legumes a Good Source of Protein?
Yes.
Beans, lentils, chickpeas, peas, and soy foods can contribute meaningful amounts of protein.
However, the protein content varies between legumes.
For example, soybeans generally contain more protein than many common beans.
Legumes can therefore be useful sources of plant protein, particularly when combined with a varied diet.
Are Legumes a Source of Fiber?
Yes.
Many legumes are naturally rich in dietary fiber.
Fiber contributes to normal digestive function and can also help make meals more filling.
Examples include:
- Lentils
- Chickpeas
- Black beans
- Kidney beans
- Split peas
If someone is not accustomed to eating much fiber, increasing legumes gradually and drinking enough fluids may make the transition more comfortable.
Are Legumes Carbohydrates?
Yes.
Legumes contain carbohydrates as well as protein and fiber.
This is important because foods do not always fit neatly into one macronutrient category.
For example:
Lentils
provide carbohydrates, protein, and fiber.
This makes legumes nutritionally different from foods that are primarily sources of one macronutrient.
Legumes and Whole Grains
Legumes can pair well with whole grains.
Examples include:
- Beans + brown rice
- Lentils + whole-grain bread
- Chickpeas + whole-grain couscous
- Beans + corn
Combining different plant foods can create meals with varied textures, flavors, and nutrient profiles.
This does not mean that every meal needs to contain both legumes and whole grains.
It simply provides another practical way to build varied meals.
Legumes and Iron
Many legumes contain iron.
Examples include:
- Lentils
- Chickpeas
- Kidney beans
- Soybeans
The iron in plant foods is primarily non-heme iron.
Its absorption can differ from the heme iron found in animal foods.
Eating legumes alongside foods containing vitamin C can help improve the absorption of non-heme iron.
For example:
Lentils + tomatoes
or
Chickpeas + bell peppers
can provide a combination of iron and vitamin C-containing foods.
Legumes and Folate
Legumes can also be useful sources of folate.
Folate is a B vitamin involved in normal cell division and blood formation.
Examples of legumes containing folate include:
- Lentils
- Chickpeas
- Beans
- Peas
This is another example of how one food group can provide several different nutrients.
Dried Beans vs. Canned Beans
Both dried and canned beans can be useful choices.
Dried Beans
Advantages include:
- Flexible portion sizes
- Long shelf life
- Control over cooking and seasoning
However, they generally require soaking and cooking.
Canned Beans
Advantages include:
- Convenient
- Ready to use
- Quick to add to meals
Some canned beans contain significant amounts of sodium.
Checking the nutrition label can help when comparing products.
Should You Rinse Canned Beans?
Rinsing canned beans can remove some of the liquid surrounding the beans.
It can also reduce some of the sodium, depending on the product and how it is rinsed.
If sodium intake is important to you, compare the nutrition labels of different products and consider options labeled low-sodium or no-salt-added when available.
Do Legumes Cause Gas?
Some people experience gas or bloating after eating beans and other legumes.
This can happen because certain carbohydrates and fibers in legumes are fermented by gut bacteria.
People who are not accustomed to eating many legumes may notice this more strongly.
Practical approaches can include:
- Increasing portions gradually
- Drinking enough fluids
- Trying different types of legumes
- Rinsing canned legumes
- Cooking dried legumes thoroughly
Individual tolerance varies.
Are Legumes Healthy?
Legumes can be a nutritious part of a balanced diet.
They provide combinations of:
- Protein
- Fiber
- Carbohydrates
- Vitamins
- Minerals
However, describing a food simply as “healthy” does not tell the whole story.
Preparation matters too.
For example:
Lentil soup
and
a highly processed fried snack made with legume ingredients
may have very different nutritional profiles.
The overall food and preparation method matter.
Legumes and Different Dietary Patterns
Legumes can fit into many eating patterns.
Omnivorous Diet
Beans, lentils, and chickpeas can complement meals that also contain meat, fish, eggs, or dairy.
Vegetarian Diet
Legumes can provide plant protein, fiber, iron, folate, and other nutrients.
Vegan Diet
Legumes can be particularly useful because they provide plant protein and several important micronutrients.
However, legumes alone do not provide every nutrient needed by the body.
A varied diet remains important.
Are Legumes Suitable for Children?
Many legumes can be part of a child’s varied diet when prepared appropriately for their age and developmental stage.
Texture and choking risk are important considerations for young children.
Whole beans may need to be modified or prepared appropriately depending on the child’s age.
Parents and caregivers should follow age-appropriate feeding guidance.
How Can You Eat More Legumes?
Simple ideas include:
- Add chickpeas to salads.
- Use lentils in soups.
- Add black beans to rice dishes.
- Make hummus from chickpeas.
- Add beans to tacos or wraps.
- Use lentils in curries.
- Add peas to pasta or rice dishes.
- Use soy foods such as tofu or tempeh in appropriate meals.
Small additions can make legumes an easy part of everyday eating.
A Simple Legume-Based Meal
Consider a meal containing:
- Lentils
- Brown rice
- Spinach
- Tomatoes
- Plain yogurt
This meal can provide:
- Protein
- Fiber
- Carbohydrates
- Iron
- Folate
- Calcium
- Other vitamins and minerals
The example demonstrates why combining different foods can create a more varied nutritional profile.
Are Legumes the Same as Vegetables?
Not exactly.
Legumes are a botanical plant family.
Some legumes, such as green peas and green beans, are commonly treated as vegetables in everyday nutrition discussions.
Other legumes, such as dried beans and lentils, are generally discussed as protein- and fiber-rich foods.
Food classification can therefore depend on whether we are talking about botany, culinary use, or nutrition.
Are Legumes the Same as Whole Grains?
No.
Legumes and grains are different plant groups.
Legumes
include:
- Beans
- Lentils
- Chickpeas
- Peas
- Soybeans
Grains
include:
- Rice
- Wheat
- Oats
- Barley
- Corn
They can complement each other in meals, but they are not the same food group.
The Simple Takeaway
Legumes are plants that produce seeds inside pods and include beans, lentils, chickpeas, peas, soybeans, and peanuts.
Remember:
- Beans, lentils, and chickpeas are legumes.
- Legumes can provide protein, fiber, carbohydrates, vitamins, and minerals.
- They can be useful sources of plant protein.
- Many legumes contain iron and folate.
- Canned and dried legumes can both be nutritious choices.
- Canned products can contain different amounts of sodium.
- Some people experience gas or bloating when eating legumes.
- Legumes can fit into omnivorous, vegetarian, and vegan diets.
- Legumes and whole grains are different food groups.
- A varied diet is more important than relying on one food group.
Legumes are therefore one of the most versatile food groups to understand when building balanced meals.
Sources & Further Reading
U.S. Department of Agriculture — MyPlate
General guidance on beans, peas, lentils, and their role in a balanced eating pattern.
U.S. Department of Agriculture — FoodData Central
A database for exploring the nutrient profiles of beans, lentils, peas, and other foods.
Harvard T.H. Chan School of Public Health — The Nutrition Source
Background information about legumes and their role in healthy eating patterns.