Effects of Hazelnut Consumption on Cardiometabolic Risk Factors and Acceptance: A Systematic Review

Abstract

Despite being rich sources of monounsaturated fat and a number of vitamins, minerals, and phytonutrients, hazelnuts have received less attention than some other nut types. A qualitative systematic review was carried out to determine the effects of hazelnut consumption on acceptance and markers of cardiometabolic health, including blood lipids and lipoproteins, apolipoproteins A1 and B100, body weight and composition, blood pressure, glycemia, antioxidant status, oxidative stress, inflammation, and endothelial function. In total, 22 intervention studies (25 publications) met our inclusion criteria. The findings indicate some improvements in cardiometabolic risk factors; however, limitations in study design mean interpretation is problematic. The inclusion of hazelnuts in the diet did not adversely affect body weight and composition. Acceptance of hazelnuts remained stable over time confirming nut consumption guidelines are feasible and sustainable. Future studies using more robust study designs in a variety of populations are required to draw more definitive conclusions on the health benefits of hazelnut consumption.

Role of Karela in Diabetes: A Review

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Hazelnut-enriched diet effectively increases lipoproteins' resistance to oxidation in hypercholesterolemic subjects

“…According to a systematic review published in 2022 (Brown et al, 2022), although there are many studies on hazelnut consumption and its effects on health, only three of them have been done in hypercholesterolemic individuals (MercanlIgil et al, 2007;Orem et al, 2013;Tey et al, 2011) two of them in hyperlipidemic individuals (Deon et al, 2018;Öngün Yılmaz et al, 2019).…”

“…Although many studies investigate the effects of hazelnut consumption on health, studies on hypercholesterolemic individuals are very limited (Brown et al, 2022). In addition, a study examining the impact of hazelnut on HDL oxidation has yet to be done.…”

Textural, rheological, melting properties, particle size distribution, and NMR relaxometry of cocoa hazelnut spread with inulin‐stevia addition as sugar replacer

“…It contributes over 60% of the world's hazelnut production, followed by Italy (TEPGE, 2021). The consumption of hazelnut may provide potential health benefits (Brown et al, 2022) since it is a rich dietary source of protein, fiber, oleic acid, α‐tocopherol, β‐sitosterol, and vitamin E (Karaosmanoglu, 2022). Hazelnut products are used as a side ingredient by food and beverage manufacturers for making various products like chocolate, biscuits, pastries, ice cream, etc.…”