Protective role of hazelnut peptides on oxidative stress injury in human umbilical vein endothelial cells.
Fang L, Ren D, Wang Z, Liu C, Wang J, Min W.
J Food Biochem. 2019 Mar;43(3):e12722. doi: 10.1111/jfbc.12722.
 
Plant Specialized Metabolites in Hazelnut (Corylus avellana) Kernel and Byproducts: An Update on Chemistry, Biological Activity, and Analytical Aspects.
Bottone A, Cerulli A, DʼUrso G, Masullo M, Montoro P, Napolitano A, Piacente S.
Planta Med. 2019 Aug;85(11-12):840-855. doi: 10.1055/a-0947-5725.

Hazelnut consumption improves testicular antioxidant function and semen quality in young and old male rats.
Kara H, Orem A, Yulug E, Yucesan FB, Kerimoglu G, Yaman SO, Bodur A, Turedi S, Alasalvar C.
Food Chem. 2019 Oct 1;294:1-8. doi: 10.1016/j.foodchem.2019.04.087.

Structural characterisation of polysaccharides from roasted hazelnut skins.
Košťálová Z, Hromádková Z.
Food Chem. 2019 Jul 15;286:179-184. doi: 10.1016/j.foodchem.2019.01.203.

Effect of refining on bioactive composition and oxidative stability of hazelnut oil.
Durmaz G, Gökmen V.
Food Res Int. 2019 Feb;116:586-591. doi: 10.1016/j.foodres.2018.08.077.

Effect of Hazelnut Oil on Muscle Cell Signalling and Differentiation.
Terruzzi I, Vacante F, Senesi P, Montesano A, Codella R, Luzi L.
J Oleo Sci. 2018 Oct 11;67(10):1315-1326. doi: 10.5650/jos.ess18086.

Hazelnut-enriched chocolate improves flow-mediated artery dilatation via inhibition of oxidative stress.
Becatti M, Fiorillo C.
Intern Emerg Med. 2018 Dec;13(8):1175-1177. doi: 10.1007/s11739-018-1945-4.

Evidence of dysbiosis in the intestinal microbial ecosystem of children and adolescents with primary hyperlipidemia and the potential role of regular hazelnut intake.
Gargari G, Deon V, Taverniti V, Gardana C, Denina M, Riso P, Guardamagna O, Guglielmetti S.
FEMS Microbiol Ecol. 2018 May 1;94(5). doi: 10.1093/femsec/fiy045.

Allergies

Sensitization profiles to hazelnut allergens across the United States.
Valcour A, Lidholm J, Borres MP, Hamilton RG.
Ann Allergy Asthma Immunol. 2019 Jan;122(1):111-116.e1. doi: 10.1016/j.anai.2018.09.466.

Allergen components in diagnosing childhood hazelnut allergy: systematic literature review and meta-analysis.
Nilsson C, Berthold M, Mascialino B, Orme M, Sjölander S, Hamilton R.
Pediatr Allergy Immunol. 2019 Jul 13. doi: 10.1111/pai.13110.

Low-Dose Oral Food Challenge with Hazelnut: Efficacy and Tolerability in Children.
Barni S, Mori F, Piccorossi A, Sarti L, Pucci N, Maresca M, Giovannini M, Liccioli G, Novembre E.
Int Arch Allergy Immunol. 2019;178(1):97-100. doi: 10.1159/000493019

Hazelnut (Corylus avellana L.) belongs to the Betulaceae family.

It is very nutrient with its 630 calories per 100 grams and is rich in fiber, vitamins and minerals.

In 100 grams of product there are 15 grams of vitamin E, antioxidant.

Folates (including vitamin B9, which prevents anemia and is useful in pregnancy) are present in the measure of 113 micrograms per 100 grams of product.

It does not contain gluten.

Hazelnut are considered an excellent anti-inflammatory and hypolipidemic food and a diet that includes a good amount of hazelnuts has the prerogative of reducing cholesterol (1) due to its high content of vitamin E, tocopherol and polyphenols.

Regular consumption of figs, despite the high value of calories, does not lead to weight gain. This result is probably caused by the antioxidant capacity of the body, which acts by increasing the genes involved in oxidant reactions and inflammation (2).

Small amounts of serotonin, a tryptamine that affects the nervous system in various ways such as as as an antidepressant, are present in the hazelnut skin (3).

Hazelnut studies

References______________________________________________________

(1) Effects of different forms of hazelnuts on blood lipids and α-tocopherol concentrations in mildly hypercholesterolemic individuals.  Tey SL, Brown RC, Chisholm AW, Delahunty CM, Gray AR, Williams SM.  Eur J Clin Nutr. 2011 Jan;65(1):117-24. doi: 10.1038/ejcn.2010.200.

(2) A Hazelnut-Enriched Diet Modulates Oxidative Stress and Inflammation Gene Expression without Weight Gain.  Di Renzo L, Cioccoloni G, Bernardini S, Abenavoli L, Aiello V, Marchetti M, Cammarano A, Alipourfard I, Ceravolo I, Gratteri S.  Oxid Med Cell Longev. 2019 Jul 4;2019:4683723. doi: 10.1155/2019/4683723

(3) Investigation of serotonin, free and protein-bound tryptophan in Turkish hazelnut varieties and effect of roasting on serotonin content.  Taş NG, Yılmaz C, Gökmen V.  Food Res Int. 2019 Jun;120:865-871. doi: 10.1016/j.foodres.2018.11.051