Hazelnut
OTHER NAME(S): Aveleira, Avelinier, Avellano, Cobnut, Coudrier, European Filbert, European Hazel, Haselnuss, Haselstrauch, Hazel, Hazel Nut, Noisetier, Noisetier Commun, Noisetier du Japon, Noisettes, Corylus avellana, Corylus heterophylla, Avellana, Noisette
Overview
Hazelnut is the nut from the hazel tree (Corylus avellana). It is rich in monounsaturated fatty acids and is commonly eaten as food.
Hazelnut contains oil, protein, fiber, and antioxidants. The antioxidants in hazelnut might have heart health benefits.
People use hazelnut for obesity, high cholesterol, heart disease, dementia, and other purposes, but there is no good scientific evidence to support these uses.
Hazelnut is a tree nut. It is considered a major food allergen.
Uses
Possibly Ineffective for
- Obesity. Eating hazelnuts or taking hazelnut oil by mouth doesn't seem to decrease body weight in people who are obese or overweight.
There is interest in using hazelnut for a number of other purposes, but there isn’t enough reliable information to say whether it might be helpful.
Side Effects
When taken by mouth: Hazelnut is commonly consumed in foods. It’s usually well-tolerated, but some people are allergic to hazelnuts. Serious allergic reactions are possible.
Precautions
When taken by mouth: Hazelnut is commonly consumed in foods. It’s usually well-tolerated, but some people are allergic to hazelnuts. Serious allergic reactions are possible.
Pregnancy and breast-feeding: Hazelnut is commonly consumed in foods. There isn’t enough reliable information to know if hazelnut is safe to use as medicine while pregnant or breast-feeding. Stay on the safe side and stick to food amounts.
Allergies: People who are allergic to peanuts, cashews, walnuts, mugwort pollen, Brazil nut, birch pollen, or macadamia nut might also be allergic to hazelnut.
Interactions
We currently have no information for Hazelnut overview.
Dosing
Hazelnut is commonly consumed in moderate amounts as part of the diet.
As medicine, there isn’t enough reliable information to know what an appropriate dose of hazelnut might be. Speak with a healthcare provider before use.
References
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- Asero R. Detection and clinical characterization of patients with oral allergy syndrome caused by stable allergens in Rosaceae and nuts. Ann Allergy Asthma Immunol 1999;83:377-83.
- Caballero T, Pascual C, Garcia-Ara MC, Ojeda JA, Martin-Esteban M. IgE crossreactivity between mugwort pollen (Artemisia vulgaris) and hazelnut (Abellana nux) in sera from patients with sensitivity to both extracts. Clin Exp Allergy 1997;27:1203-11.
- Pumphrey RS, Wilson PB, Faragher EB, Edwards SR. Specific immunoglobulin E to peanut, hazelnut and brazil nut 731 patients: similar patterns found at all ages. Clin Exp Allergy 1999;29:1256-9.
- Savage GP, McNeil DL. Chemical composition of hazelnuts (Corylus avellana) grown in New Zealand. Int J Food Sci Nutr 1998;49:199-203.
- Caballero T, Martin-Esteban M. Association between pollen hypersensitivity and edible vegetable allergy: a review. J Investig Allergol Clin Immunol 1998;8:6-16.
- Sutherland MF, O'Hehir RE, Czarny D, Suphioglu C. Macadamia nut anaphylaxis: demonstration of specific IgE reactivity and partial cross-reactivity with hazelnut. J Allergy Clin Immunol 1999;104:889-90.
- Munoz MF, Lopez-Cazana JM, Villas F, et al. Exercise-induced anaphylactic reaction to hazelnut. Allergy 1994;49:314-6.
- O'Mahony M, Mitchell E, Gilbert RJ, Hutchinson DN, et al. An outbreak of foodborne botulism associated with contaminated hazelnut yoghurt. (abstract) Epidemiol Infect 1990;104:389-95.
- Feldman EB. The scientific evidence for a beneficial health relationship between walnuts and coronary heart disease. J Nutr 2002;132:1062S-101S.
- Hu FB, Stampfer MJ. Nut consumption and risk of coronary heart disease: a review of epidemiologic evidence. Curr Atheroscler Rep 1999;1:204-9.
- Masthoff LJ, van Hoffen E, Mattsson L, et al. Peanut allergy is common among hazelnut-sensitized subjects but is not primarily the result of IgE cross-reactivity. Allergy 2015;70(3):265-74.
- Masthoff LJ, van Hoffen E, de Reus A, et al. Hazelnut allergy differs between children and adults in frequency of severity, aetiology and relevance of diagnostic parameters. Clin Exp Allergy 2014;44(12):1539-45.
- Peroni DG, Dall'Agnola A, Piacentini GL, Boner AL. Worsening of atopic dermatitis by hazelnut essence contained in hydroxyzine syrup. Acta Paediatr 2007;96(11):1710.
- Valcour A, Lidholm J, Borres MP, Hamilton RG. Sensitization profiles to hazelnut allergens across the United States. Ann Allergy Asthma Immunol 2019;122(1):111-6.e1.
- Lima RPA, do Nascimento RAF, Luna RCP, et al. Effect of a diet containing folate and hazelnut oil capsule on the methylation level of the ADRB3 gene, lipid profile and oxidative stress in overweight or obese women. Clin Epigenetics 2017;9:110.
- Perna S, Giacosa A, Bonitta G, et al. Effects of hazelnut consumption on blood lipids and body weight: a systematic review and Bayesian meta-analysis. Nutrients 2016;8(12). pii: E747.
- FDA. Qualified Health Claims: Letter of Enforcement Discretion - Nuts and Coronary Heart Disease (Docket No 02P-0505). July 2003. Available at: https://wayback.archive-it.org/7993/20171114183724/https://www.fda.gov/Food/IngredientsPackagingLabeling/LabelingNutrition/ucm072926.htm. Accessed on March 6, 2020.
- Bahaeddin Z, Yans A, Khodagholi F, Hajimehdipoor H, Sahranavard S. Hazelnut and neuroprotection: Improved memory and hindered anxiety in response to intra-hippocampal Aß injection. Nutr Neurosci. 2017 Jul;20(6):317-326.
- Shahidi F, Alasalvar C, Liyana-Pathirana CM. Antioxidant phytochemicals in hazelnut kernel (Corylus avellana L.) and hazelnut byproducts. J Agric Food Chem. 2007 Feb 21;55(4):1212-20.
- Food and Drug Administration. Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA); Public Law 108-282, Title II. Accessed on May 19, 2021. Available at: https://www.fda.gov/food/food-allergensgluten-free-guidance-documents-regulatory-information/food-allergen-labeling-and-consumer-protection-act-2004-falcpa.