American Hazelnut: 20 Benefits, Side Effects & How Much to Eat

American hazelnut is a small native North American nut with a naturally sweet, rich flavor and a satisfying crunch. It is often overlooked compared with the more widely cultivated European hazelnut, but American hazelnut can still be a nutritious addition to a balanced diet.

Like other tree nuts, it provides healthy fats, protein, fiber, vitamins, minerals, and plant compounds. Nuts are generally nutrient-dense foods, and the American Heart Association includes hazelnuts among healthy nut choices.

However, American hazelnut should not be considered a treatment for any disease. Most of its potential health advantages come from its overall nutrient profile and from replacing less nutritious foods in the diet.

Table of Contents

What Is American Hazelnut?

American hazelnut, scientifically known as Corylus americana, is a deciduous shrub native to much of eastern and central North America. It produces small, edible nuts enclosed by leafy husks.

The nuts have a mildly sweet and earthy flavor. They can be eaten raw when fully mature, roasted, or incorporated into different recipes.

American hazelnut is sometimes called American filbert. It should not automatically be treated as identical to the commercially common European hazelnut (Corylus avellana), although both belong to the Corylus genus.

Available food-plant references describe the American hazelnut seed as an edible food containing protein, energy, iron, and zinc.

American hazelnuts are particularly interesting from a nutrition perspective because nuts generally provide unsaturated fats, fiber, protein, vitamins, minerals, and antioxidant compounds.

Nutrition Facts of American Hazelnut

The exact nutritional composition of wild American hazelnuts can vary according to growing conditions, maturity, variety, and preparation. Therefore, the figures below should be viewed as approximate rather than a standardized laboratory analysis of every American hazelnut.

Nutrient	Approximate amount per 100 g
Calories	About 350–630 kcal*
Protein	About 7–15 g*
Total fat	About 30–60 g*
Carbohydrates	About 10–25 g*
Dietary fiber	Variable
Calcium	Variable
Iron	About 1–2 mg*
Magnesium	Variable
Potassium	Variable
Zinc	About 2 mg*
Vitamin E	Present
Plant compounds	Present

20 Proven Health Benefits of American Hazelnut

Supports Heart Health: American hazelnuts provide unsaturated fats, and replacing foods high in saturated fat with unsaturated-fat sources can support cardiovascular health.
Provides Healthy Fats: The naturally occurring unsaturated fats in nuts can contribute useful dietary fat to a balanced eating pattern.
May Support Healthy Cholesterol: Replacing saturated fats with unsaturated fats can help lower LDL cholesterol and support a healthier lipid profile.
Provides Plant Protein: American hazelnuts contribute plant-based protein that can complement beans, seeds, whole grains, and other protein foods.
Provides Dietary Fiber: Fiber from nuts can contribute to daily fiber intake and may support digestive health and fullness.
Supports Satiety: The combination of fat, protein, and fiber can make a small serving of nuts relatively filling.
Supports Healthy Weight Management: When used instead of less nutritious snacks and consumed in appropriate portions, nuts can fit into a weight-management eating pattern.
Provides Magnesium: Hazelnuts contribute minerals such as magnesium, a nutrient involved in muscle, nerve, energy, glucose, and blood-pressure functions.
Supports Normal Muscle Function: Magnesium and other minerals contribute to normal muscle contraction and nerve function.
Supports Bone Nutrition: Minerals found in nuts can contribute to the overall nutrient intake needed for maintaining normal bones.
Provides Antioxidant Compounds: Nuts contain vitamin E and various plant compounds that contribute antioxidant activity.
Supports Brain Nutrition: Unsaturated fats, vitamin E, minerals, and other nutrients in nuts can contribute to an overall eating pattern that supports brain health.
Supports Energy Production: The combination of fats, protein, and carbohydrates makes hazelnuts a concentrated source of dietary energy.
Supports Metabolic Health: Replacing highly processed foods with nutrient-dense nuts can be part of a dietary pattern associated with better cardiometabolic health.
Helps Increase Nutrient Density: A small serving provides several nutrients without requiring a large volume of food.
Supports a Plant-Forward Diet: American hazelnuts can add protein, healthy fats, and minerals to plant-based meals.
May Help With Blood Sugar-Friendly Eating: Their combination of fat, protein, and fiber can make them a useful addition to balanced meals and snacks.
Supports Normal Nerve Function: Magnesium contributes to normal nerve impulse transmission and muscle function.
May Support Overall Dietary Quality: Adding unsalted nuts to a balanced diet can increase intake of healthy fats, fiber, protein, vitamins, and minerals.
Convenient Nutrient-Dense Snack: American hazelnuts can be eaten in small portions without extensive preparation, making them a practical whole-food snack.

10 Side Effects of American Hazelnut

Allergic Reactions: Hazelnuts are tree nuts and can cause allergic reactions ranging from mild symptoms to potentially life-threatening anaphylaxis.
Oral Allergy Symptoms: Some people with pollen-food syndrome may experience itching or mild swelling in the mouth after eating certain raw nuts.
Digestive Discomfort: Eating a large quantity can cause bloating, gas, abdominal discomfort, or changes in bowel movements because nuts contain fat and fiber.
High Calorie Intake: Hazelnuts are energy-dense, so frequent large portions can add substantial calories to the diet.
Possible Cross-Contact: Commercial or processed hazelnuts may come into contact with other tree nuts or allergens during processing.
Choking Risk: Whole nuts can present a choking hazard, particularly for young children.
Added Sugar Concerns: Candied or chocolate-coated hazelnuts may contain substantially more added sugar than plain nuts.
Excess Sodium: Salted hazelnuts can contribute unnecessary sodium when eaten frequently or in large portions.
Rancidity: Improperly stored hazelnuts can become rancid, producing an unpleasant smell and bitter taste.
Individual Intolerance: Some people may experience digestive or other symptoms without having a confirmed food allergy, so recurring reactions should be discussed with a healthcare professional.

How to Eat American Hazelnut?

American hazelnuts can be eaten in several simple ways:

Raw: Fully mature nuts can be eaten after removing the outer husk and shell.
Roasted: Light roasting can intensify their naturally sweet, nutty flavor.
Chopped: Add chopped hazelnuts to oatmeal, yogurt, salads, or whole-grain cereal.
Ground: Grind them and add them to baked goods, homemade energy bites, or sauces.
Nut Butter: Properly processed hazelnuts can be made into a nut butter.
Trail Mix: Combine them with seeds and dried fruit for a portable snack.
Smoothies: A small amount of ground hazelnut can add creaminess and flavor.
Desserts: Use them in homemade cookies, cakes, or other desserts.

Choose plain or lightly roasted versions more often than varieties heavily coated with salt, sugar, or confectionery ingredients.

Tips for Consuming American Hazelnut

Start with a small amount if you have never eaten the nut before.
Choose fresh, unsalted nuts whenever possible.
Avoid nuts that smell stale, oily, or rancid.
Roast gently rather than heavily burning the nuts.
Combine hazelnuts with fruit, oats, yogurt, or whole grains for a balanced snack.
Keep portions moderate because nuts are calorie-dense.
Check ingredient labels on packaged nut products for other allergens.
If you have a known tree-nut allergy, do not experiment with American hazelnut without medical advice.

Other Uses of American Hazelnut

Cooking Ingredient: The nuts can be chopped, roasted, ground, or incorporated into various sweet and savory recipes.
Baking: Ground or chopped hazelnuts can add flavor and texture to breads, cookies, cakes, and other baked foods.
Nut Butter: Edible hazelnuts can be processed into a creamy nut butter.
Hazelnut Oil: Oil can be obtained from hazelnut seeds and has culinary and cosmetic applications.
Homemade Snacks: Roasted hazelnuts can be combined with dried fruits and seeds to make trail mixes.
Plant-Based Recipes: Hazelnuts can provide richness and texture in plant-forward dishes.
Dessert Toppings: Chopped hazelnuts can be sprinkled over yogurt, fruit, oatmeal, and desserts.
Garden and Landscaping: The American hazelnut shrub can also be grown as a native landscape plant and screening shrub.

How Many American Hazelnut Can You Eat in a Day?

For most healthy adults who are not allergic, a practical portion is about 1 ounce (28 g), or a small handful, per day. The American Heart Association describes a small handful or approximately 1 ounce of whole nuts as a serving.

You do not necessarily need to eat hazelnuts every day. Portion size should also take into account your total calorie intake and what other nuts or seeds you consume.

Best Time to Eat American Hazelnut

There is no scientifically established best time to eat American hazelnuts.

You can enjoy them:

With breakfast alongside oatmeal or yogurt.
As a mid-morning snack.
With fruit as an afternoon snack.
Added to salads or grain bowls at lunch.
As part of a balanced evening meal.

The overall quality of your diet and portion size matter more than a specific time of day.

Who Should Eat American Hazelnut?

Healthy Adults: People without nut allergies can include American hazelnuts as part of a balanced diet.
People Seeking Plant-Based Protein: Hazelnuts can contribute protein alongside legumes, seeds, and whole grains.
People Looking for Healthy Fats: Their unsaturated fats can fit into a heart-conscious eating pattern.
People Increasing Fiber Intake: Hazelnuts can contribute dietary fiber to meals and snacks.
People Following Plant-Forward Diets: They can add energy, texture, and nutrients to vegetarian and plant-focused meals.
Active Individuals: Their combination of fat, protein, and carbohydrates provides concentrated dietary energy.
People Wanting Nutrient-Dense Snacks: A small handful can provide several nutrients in a convenient food.

Who Should Not Eat American Hazelnut?

People With Hazelnut Allergy: Anyone with a diagnosed hazelnut allergy should avoid American hazelnuts because tree-nut reactions can be severe.
People With Previous Severe Tree-Nut Reactions: Those with a history of severe reactions should follow their allergist’s avoidance plan.
Young Children: Whole hazelnuts should not be given to young children because of choking risk; use age-appropriate forms according to pediatric guidance.
People With Suspected Nut Allergy: Anyone developing itching, swelling, breathing difficulty, vomiting, or other concerning symptoms after eating nuts should seek medical evaluation.
People Advised to Restrict Certain Foods: Individuals following medically prescribed diets should discuss appropriate portions with their healthcare professional.

How to Store American Hazelnut?

Keep Them Cool: Store shelled hazelnuts in a cool location for short-term use.
Use an Airtight Container: An airtight container helps protect the nuts from moisture, air, and odors.
Refrigerate for Longer Storage: Refrigeration can help extend freshness.
Freeze for Extended Storage: Freezing can be useful when storing larger quantities for longer periods.
Check for Rancidity: Discard nuts that develop a bitter flavor, unpleasant smell, mold, or other signs of spoilage.
Avoid Humidity: Excess moisture can encourage deterioration and mold growth.
Keep Away From Strong Odors: Nuts can absorb surrounding odors, so store them away from strongly scented foods.
Label Stored Nuts: If freezing, labeling the container with the storage date can make freshness easier to monitor.

Precautions and Interactions

Check for Tree-Nut Allergy: Hazelnut is a tree nut and should be avoided by anyone with a confirmed allergy unless an allergist specifically advises otherwise.
Watch for Severe Symptoms: Difficulty breathing, throat swelling, dizziness, or widespread symptoms after eating hazelnut can indicate anaphylaxis and require emergency medical attention.
Consider Cross-Contact: Packaged nuts may be processed in facilities handling other tree nuts, peanuts, or other allergens.
Do Not Assume All Nuts Are Safe: Allergy to one tree nut does not automatically mean allergy to every tree nut, but related allergies and cross-reactivity can occur; an allergist can provide individualized guidance.
Control Portions: Because nuts are calorie-dense, very large servings may make it easier to exceed daily energy needs.
Choose Unsalted Options: Plain or unsalted hazelnuts are preferable when you are trying to limit sodium.
Limit Sugary Preparations: Chocolate-coated, caramelized, or candied hazelnuts can contain considerable added sugar.
Check Nut Products: Hazelnut spreads, oils, and baked products may contain additional ingredients that are important for people with allergies.
Use Fresh Nuts: Rancid nuts should not be consumed because deterioration can affect flavor and quality.
Discuss Medical Diets With a Professional: If you have a medically managed condition or prescribed dietary restrictions, ask your healthcare professional about the appropriate amount.

American Hazelnut vs. European Hazelnut

American hazelnut and European hazelnut belong to the same genus but are different species.

Feature	American Hazelnut	European Hazelnut
Scientific name	Corylus americana	Corylus avellana
Native range	North America	Europe and western Asia
Growth habit	Often a multi-stemmed shrub	Commonly cultivated as a nut-producing shrub
Nut size	Generally smaller	Generally larger
Commercial use	More limited	Major commercial hazelnut crop
Flavor	Mild, nutty, slightly sweet	Rich, nutty, often sweeter
Common name	American hazelnut/filbert	European hazelnut/filbert

Although they are related, nutrition data for one species should not automatically be presented as an exact laboratory profile for the other.

Final Thoughts

American hazelnut is an edible native North American nut that can provide healthy fats, protein, fiber, minerals, and other beneficial plant compounds. Its nutrient profile makes it a useful addition to a balanced diet, particularly when eaten in moderate portions and used in place of less nutritious snacks.

The strongest evidence for health benefits comes from research on nuts and healthy dietary patterns generally, rather than clinical trials specifically testing American hazelnut. Current cardiovascular dietary guidance emphasizes overall dietary patterns and the replacement of saturated fats with unsaturated-fat sources rather than relying on a single food.

FAQ’s

Is American Hazelnut edible?
Yes, mature American hazelnuts are edible and can be eaten raw or roasted after removing the outer husk and hard shell.

What does American Hazelnut taste like?
American hazelnuts have a mild, nutty, slightly sweet flavor and become more aromatic when roasted.

Is American Hazelnut the same as European Hazelnut?
No, they are different species; American hazelnut is Corylus americana, while European hazelnut is generally Corylus avellana.

Can you eat American Hazelnuts raw?
Yes, fully mature American hazelnuts can be eaten raw after removing the husk and shell, although roasting can enhance their flavor.

Are American Hazelnuts good for the heart?
They can be part of a heart-healthy diet because they contain predominantly unsaturated fats and other nutrients found in nutrient-dense nuts.

Are American Hazelnuts good for weight loss?
American hazelnuts can fit into a weight-management diet when eaten in moderate portions because their protein, fat, and fiber can help make meals and snacks satisfying.

Are American Hazelnuts high in protein?
They provide plant-based protein, although they are primarily valued as a source of healthy fats and other nutrients rather than as a high-protein food.

Are American Hazelnuts high in calories?
Yes, like other nuts, American hazelnuts are relatively energy-dense, so portion control is important.

Can American Hazelnuts cause allergies?
Yes, American hazelnuts are tree nuts and can cause allergic reactions, including severe reactions such as anaphylaxis in susceptible people.

Can children eat American Hazelnuts?
Older children who can safely chew nuts may eat appropriately prepared hazelnuts, but whole nuts can be a choking hazard for young children.

Can American Hazelnuts be roasted?
Yes, roasting American hazelnuts can enhance their natural nutty flavor and make them suitable for snacks, baking, salads, and other recipes.

Can American Hazelnuts be used to make oil?
Yes, hazelnut seeds contain oil that can be extracted and used for culinary and other purposes.

Are American Hazelnuts good for digestion?
Their fiber content can contribute to normal digestive health, although eating a large amount at once may cause bloating or digestive discomfort in some people.

Can you eat American Hazelnuts every day?
Yes, people without a hazelnut allergy can generally include a moderate portion of American hazelnuts as part of a varied and balanced diet.

Is American Hazelnut Safe for Pregnant Women?
Yes, American hazelnut can generally be included in a pregnancy diet if the pregnant woman does not have a hazelnut or tree-nut allergy and eats it in moderate amounts as part of a balanced diet.

What Is American Hazelnut Good For?
American hazelnut is a nutrient-dense nut that provides healthy fats, protein, fiber, vitamin E, minerals, and plant compounds, making it useful as part of a balanced diet and nutritious snack.

How Quickly Does American Hazelnut Grow?
American hazelnut is a relatively fast-growing native shrub under suitable conditions and can commonly grow around 1–2 feet per year, although growth varies with soil, moisture, sunlight, climate, and plant age.

Is American Hazelnut a Tree or Bush?
American hazelnut is a multi-stemmed deciduous shrub or bush, rather than a typical single-trunk tree, and it commonly grows several feet tall and wide.

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Disclaimer

This guide is for educational purposes only and does not replace professional medical advice. People with food allergies or medical conditions should consult a qualified healthcare professional before making dietary changes.

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