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

Author

Listed:
  • Rachel Brown

    (Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand)

  • Lara Ware

    (Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand)

  • Siew Ling Tey

    (Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand)

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.

Suggested Citation

  • Rachel Brown & Lara Ware & Siew Ling Tey, 2022. "Effects of Hazelnut Consumption on Cardiometabolic Risk Factors and Acceptance: A Systematic Review," IJERPH, MDPI, vol. 19(5), pages 1-50, March.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:5:p:2880-:d:762046
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    References listed on IDEAS

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    1. Thiago Veiga Jardim & Dariush Mozaffarian & Shafika Abrahams-Gessel & Stephen Sy & Yujin Lee & Junxiu Liu & Yue Huang & Colin Rehm & Parke Wilde & Renata Micha & Thomas A Gaziano, 2019. "Cardiometabolic disease costs associated with suboptimal diet in the United States: A cost analysis based on a microsimulation model," PLOS Medicine, Public Library of Science, vol. 16(12), pages 1-15, December.
    2. Siew Ling Tey & Terryn Robinson & Heniti Davis & Andrew R Gray & Alexandra W Chisholm & Rachel C Brown, 2015. "The Effect of Regular Hazelnut Consumption on Cardiovascular Risk Factors and Acceptance in Māori and European," Journal of Nutrients, Conscientia Beam, vol. 2(2), pages 39-53.
    3. Siew Ling Tey & Terryn Robinson & Heniti Davis & Andrew R Gray & Alexandra W Chisholm & Rachel C Brown, 2015. "The Effect of Regular Hazelnut Consumption on Cardiovascular Risk Factors and Acceptance in Māori and European," Journal of Nutrients, Conscientia Beam, vol. 2(2), pages 39-53.
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