Nuts are common foods enjoyed around the world.
They can be eaten on their own, added to meals, mixed into baked foods, or turned into products such as nut butter.
Common examples include:
- Almonds
- Walnuts
- Cashews
- Pistachios
- Pecans
- Hazelnuts
- Macadamia nuts
- Brazil nuts
You may see nuts used in:
- Breakfast foods
- Salads
- Stir-fries
- Desserts
- Baked goods
- Snacks
- Sauces
- Nut butters
Nuts come in many different shapes, sizes, textures, and flavors.
But what exactly makes a food a nut?
And are peanuts actually nuts?
Let’s take a closer look.
What Are Nuts?
In everyday food terminology, nuts generally refer to hard-shelled edible seeds or fruits that are commonly eaten as foods.
Many familiar nuts grow inside hard shells that protect the edible part.
Examples include:
- Almonds
- Walnuts
- Pistachios
- Pecans
- Hazelnuts
However, the everyday culinary definition of a nut is not exactly the same as the botanical definition.
This is why some foods commonly called nuts are botanically different from true nuts.
Are All Nuts Botanically Nuts?
No.
This is one of the interesting things about nuts.
In botany, a true nut is a specific type of fruit.
Some foods that we commonly call nuts are actually seeds or other types of fruits.
For everyday eating, however, they are generally grouped together because they have similar culinary uses and characteristics.
Are Peanuts Nuts?
Despite their name, peanuts are not technically tree nuts.
Peanuts are legumes.
They belong to the same broad plant family as foods such as:
- Beans
- Lentils
- Peas
However, peanuts are commonly grouped with nuts in cooking and nutrition because they are eaten in similar ways.
This distinction becomes particularly important when discussing food allergies.
What Are Tree Nuts?
Tree nuts are nuts that grow on trees.
Common examples include:
- Almonds
- Cashews
- Walnuts
- Pistachios
- Pecans
- Hazelnuts
- Macadamia nuts
- Brazil nuts
Peanuts are not tree nuts because they grow underground as legumes.
What Are the Most Common Types of Nuts?
There are many varieties of nuts.
Some of the most familiar include:
Almonds
Almonds have a firm texture and mild, slightly sweet flavor.
They are commonly eaten:
- Whole
- Sliced
- Chopped
- Roasted
- As almond butter
- In baked foods
Walnuts
Walnuts have a distinctive shape and rich flavor.
They are often used in:
- Salads
- Baked goods
- Breakfast foods
- Sauces
- Snacks
Cashews
Cashews have a curved shape and relatively creamy texture.
They are commonly used in:
- Stir-fries
- Curries
- Snacks
- Desserts
- Sauces
Pistachios
Pistachios are usually sold in their shells or already shelled.
They have a distinctive flavor and are commonly eaten as snacks or used in desserts.
Pecans
Pecans have a rich, buttery flavor.
They are particularly common in:
- Pies
- Baked goods
- Salads
- Snacks
Hazelnuts
Hazelnuts have a characteristic roasted flavor.
They are often used in:
- Chocolate products
- Desserts
- Spreads
- Baked foods
Macadamia Nuts
Macadamia nuts have a relatively rich and creamy texture.
They are commonly eaten roasted or used in baked foods.
Brazil Nuts
Brazil nuts are relatively large compared with many other commonly eaten nuts.
They can be eaten whole or chopped and added to different foods.
What Do Nuts Taste Like?
Different nuts have different flavors.
Some are relatively mild, while others have stronger or richer flavors.
For example:
- Almonds are mild and slightly sweet.
- Walnuts have a richer, slightly bitter flavor.
- Cashews are relatively mild and creamy.
- Pistachios have a distinctive savory flavor.
- Hazelnuts become particularly aromatic when roasted.
Roasting can change the flavor and texture of many nuts.
What Is the Difference Between Raw and Roasted Nuts?
Raw and roasted nuts differ mainly in how they are processed.
Raw nuts have not been roasted.
Roasted nuts are heated, which can change their:
- Flavor
- Aroma
- Texture
- Color
Roasted nuts often have a deeper flavor and a crispier texture.
Are Roasted Nuts Healthy?
Roasting itself does not automatically make nuts an unhealthy food.
However, the overall product matters.
Some roasted nuts may have added:
- Salt
- Sugar
- Oil
- Flavorings
If you want a simpler product, check the ingredient list and nutrition label.
What Are Salted Nuts?
Salted nuts have added salt.
They are popular as snacks because the combination of the nut’s natural flavor and salt creates a stronger savory taste.
If you are trying to reduce sodium intake, compare products and check the nutrition label.
Unsalted or lightly salted versions may be options depending on your preference.
What Are Unsalted Nuts?
Unsalted nuts do not have added salt.
They can be useful when you want to control the amount of salt in a meal or recipe.
They also work well in:
- Oatmeal
- Yogurt
- Salads
- Smoothies
- Homemade snacks
What Is Nut Butter?
Nut butter is made by grinding nuts into a spreadable form.
Common examples include:
- Peanut butter
- Almond butter
- Cashew butter
- Hazelnut butter
Depending on the product, additional ingredients may be added.
Some nut butters contain only nuts, while others may contain:
- Salt
- Sugar
- Oils
- Other ingredients
Checking the ingredient list can help you understand what you are buying.
Are Nuts Used in Cooking?
Yes.
Nuts are extremely versatile ingredients.
They can add:
- Crunch
- Flavor
- Texture
- Richness
to dishes.
They can be used in:
- Salads
- Stir-fries
- Rice dishes
- Noodles
- Cereals
- Yogurt
- Desserts
- Baked foods
- Sauces
Can Nuts Be Used in Baking?
Yes.
Nuts are commonly used in baked foods.
They can be:
- Mixed into dough
- Added as toppings
- Ground into flour
- Used in fillings
- Combined with chocolate
Almonds, walnuts, pecans, and hazelnuts are particularly common in baking.
Can Nuts Be Added to Breakfast?
Yes.
A small amount of nuts can be added to everyday breakfast foods.
For example:
- Almonds with oatmeal
- Walnuts with yogurt
- Pistachios with fruit
- Nut butter on whole-grain toast
This is an easy way to add different textures to breakfast.
Can Nuts Be Added to Salads?
Yes.
Chopped nuts can add crunch and richness to salads.
Common choices include:
- Walnuts
- Almonds
- Pecans
- Cashews
You can use them whole, sliced, or chopped.
Can Nuts Be Used in Asian Cooking?
Absolutely.
Nuts are used in many Asian cuisines.
Examples include:
- Cashews in stir-fries
- Peanuts in sauces
- Peanuts in noodle dishes
- Sesame and nuts in various dishes
Their texture and flavor can complement vegetables, noodles, rice, and sauces.
Are Nuts a Snack?
Yes.
Nuts are commonly eaten as snacks.
They can be eaten:
- On their own
- Mixed with dried fruit
- Added to trail mixes
- Combined with seeds
- Used as a topping
Choosing plain or minimally seasoned nuts can make it easier to control added salt or sugar.
What Are Mixed Nuts?
Mixed nuts are products containing multiple types of nuts.
A mixture might include:
- Almonds
- Cashews
- Peanuts
- Pecans
- Walnuts
The exact combination depends on the product.
Some mixed nut products also contain dried fruit, seeds, salt, or other ingredients.
Check the package if you need to know exactly what is included.
What Are Nuts and Seeds?
Nuts and seeds are often grouped together because they have similar culinary uses.
However, they are not exactly the same thing.
Nuts are generally associated with hard-shelled foods such as almonds and walnuts.
Seeds are reproductive structures produced by plants.
Common edible seeds include:
- Chia seeds
- Flaxseeds
- Sunflower seeds
- Pumpkin seeds
- Sesame seeds
Both can be used in snacks, salads, cereals, and baked foods.
Are Peanuts and Almonds the Same?
No.
Peanuts are legumes, while almonds are tree nuts.
They can both be eaten as snacks and made into spreads, but they come from different types of plants.
How Should You Choose Nuts?
When buying nuts, consider:
1. Type
Choose the variety you enjoy or that suits your recipe.
2. Preparation
Decide whether you want:
- Raw
- Roasted
- Salted
- Unsalted
- Flavored
3. Ingredients
Check whether the product contains added:
- Salt
- Sugar
- Oils
- Flavorings
4. Packaging
Choose packaging that is intact and properly sealed.
5. Amount
Buy an amount that you can use before the product loses quality.
How Should Nuts Be Stored?
Nuts contain natural oils, which means they can eventually become rancid if stored improperly.
Storage recommendations depend on the type of nut and packaging.
For longer storage, keeping nuts in a cool environment can help maintain quality.
Some nuts can also be refrigerated or frozen for longer-term storage.
Always follow the manufacturer’s storage instructions when available.
Why Can Nuts Taste Rancid?
Nuts contain oils.
Over time, exposure to:
- Heat
- Light
- Air
can cause these oils to deteriorate.
This can produce an unpleasant smell or taste commonly described as rancid.
If nuts have an obvious stale or rancid smell or taste, it is better not to eat them.
Should Nuts Be Refrigerated?
Not always.
For nuts that will be eaten relatively soon, a cool, dry storage area may be sufficient depending on the product.
For longer storage, refrigeration can help slow deterioration.
Follow the storage instructions on the package.
Can Nuts Be Frozen?
Yes.
Many nuts can be frozen.
Freezing can be useful when you have a larger quantity that you do not plan to use soon.
Use airtight packaging to help protect the nuts from moisture and odors.
How Long Do Nuts Last?
There is no single answer because shelf life depends on:
- Type of nut
- Whether they are raw or roasted
- Packaging
- Storage conditions
- Exposure to heat and air
Always check the package date when available and pay attention to changes in smell, taste, or appearance.
Are Nuts Safe for Everyone?
No.
Nuts are among the foods that can cause allergic reactions in some people.
Tree nut allergies can be serious.
Peanuts can also cause serious allergic reactions, even though peanuts are legumes rather than tree nuts.
People with known food allergies should carefully check ingredient labels and follow advice from their healthcare professionals.
Why Is Nut Allergy Information Important?
Nut allergies can cause serious reactions.
This is why packaged foods often identify common allergens clearly.
If you have a known allergy, do not assume that a product is safe simply because nuts are not obvious in the food.
Check the ingredient list and allergen information carefully.
Are Nuts a Whole Food?
Whole nuts are generally considered minimally processed foods.
However, not every nut product is the same.
For example:
Whole almonds
and
A flavored nut snack containing added sugar, oil, and salt
are different products.
The term “nuts” therefore does not automatically mean that every nut-based product has the same ingredients or level of processing.
What Is the Difference Between Whole Nuts and Nut Products?
Whole nuts are relatively simple foods.
Nut products can contain additional ingredients.
For example, a nut butter may contain:
- Nuts
- Salt
- Sugar
- Oil
depending on the brand and product.
Reading the ingredient list is the easiest way to see what has been added.
A Simple Way to Eat More Nuts
You do not need complicated recipes.
Try simple combinations.
Breakfast
Add chopped walnuts or almonds to oatmeal.
Snack
Eat a small portion of unsalted nuts.
Lunch
Add nuts to a salad.
Dinner
Use cashews in a vegetable stir-fry.
Dessert
Add chopped nuts to yogurt or fruit.
Spread
Use peanut or almond butter on toast.
These simple uses can make nuts easier to incorporate into everyday meals.
Common Questions About Nuts
Are peanuts nuts?
Peanuts are commonly grouped with nuts in food, but botanically they are legumes rather than tree nuts.
What are tree nuts?
Tree nuts include foods such as almonds, walnuts, cashews, pistachios, pecans, hazelnuts, and macadamia nuts.
Are nuts seeds?
Some foods commonly called nuts are botanically seeds, but the culinary category of nuts includes several different botanical structures.
What are the most common nuts?
Common nuts include almonds, walnuts, cashews, pistachios, pecans, hazelnuts, macadamia nuts, and Brazil nuts.
Can nuts be eaten raw?
Many commercially sold nuts can be eaten without roasting. Follow the product’s preparation instructions.
Are roasted nuts different from raw nuts?
Yes. Roasting changes the flavor, aroma, texture, and appearance of nuts.
What is nut butter?
Nut butter is made by grinding nuts into a spreadable product.
Can nuts be frozen?
Yes. Many nuts can be frozen for longer-term storage.
Why do nuts become rancid?
Their natural oils can deteriorate over time, particularly when exposed to heat, light, and air.
How should nuts be stored?
Follow the package instructions and keep them protected from excessive heat, light, air, and moisture.
Are peanuts and almonds the same?
No. Peanuts are legumes, while almonds are tree nuts.
Can people with nut allergies eat nuts?
People with known nut allergies should avoid the relevant allergens and carefully check food labels.
The Simple Takeaway
Nuts are versatile foods that can be eaten on their own or used in many different dishes.
Remember:
- Nuts come in many varieties, including almonds, walnuts, cashews, pistachios, pecans, and hazelnuts.
- Peanuts are legumes, not tree nuts, despite commonly being grouped with nuts as food.
- Tree nuts grow on trees.
- Raw and roasted nuts have different flavors and textures.
- Some nut products contain added salt, sugar, oils, or other ingredients.
- Nut butter is made by grinding nuts into a spreadable form.
- Nuts can be used in breakfasts, salads, stir-fries, baked foods, desserts, and snacks.
- Their natural oils mean they can lose quality when exposed to heat, light, and air for long periods.
- Many nuts can be refrigerated or frozen for longer storage.
- Nut allergies can cause serious reactions, so allergen information is important.
- Whole nuts and highly flavored or processed nut products are not necessarily the same thing.
Nuts don’t need to be complicated.
Choose a variety you enjoy, check the ingredients when buying packaged products, store them properly, and use them in meals and snacks in ways that fit your eating habits.
Sources & Further Reading
U.S. Food and Drug Administration — Food Allergies
General information about major food allergens and food-allergy safety.
Harvard T.H. Chan School of Public Health — The Nutrition Source
General information about nuts, their uses in food, and their role in an overall eating pattern.
U.S. Department of Agriculture — MyPlate
General information about food groups and building varied eating patterns.
Disclaimer
This article is for general informational and educational purposes only. It is not intended to provide personalized dietary, nutritional, or medical advice. Individual nutritional needs may vary, so consult a qualified healthcare professional or registered dietitian for advice specific to your circumstances.