Abstract Title:

Nut Consumption Is Associated with Decreased Health Risk Factors for Cardiovascular Disease and Metabolic Syndrome in U.S. Adults: NHANES 1999-2004.

Abstract Source:

J Am Coll Nutr. 2011 Dec ;30(6):502-10. PMID: 22331685

Abstract Author(s):

Carol E O'Neil, Debra R Keast, Theresa A Nicklas, Victor L Fulgoni

Article Affiliation:

261 Knapp Hall; LSU AgCenter, Baton Rouge, Louisiana 70803. coneil1@lsu.edu.


BACKGROUND: Few recent epidemiologic studies have assessed the effect that nut consumption (including tree nuts and peanuts) has on health risks, including metabolic syndrome (MetS). Objective: This study compared the health risk for cardiovascular disease, type 2 diabetes, and MetS of nut consumers with that of nonconsumers.

DESIGN: Adults 19+ years (n = 13,292) participating in the 1999-2004 National Health and Nutrition Examination Survey were used. Intake from 24-hour recalls was used to determine intake. Nut/tree nut consumers consumed≥¼ ounce per day. Covariate-adjusted means, standard errors, and prevalence rates were determined for the nut consumption groups. Results: The prevalence of nut consumers was 18.6%± 0.7% and 21.0% ± 0.9% in those 19-50 years and 51 years and older, respectively. Nut consumption was associated with a decreased body mass index (27.7 kg/m(2) ± 0.2 vs 28.1 ± 0.1 kg/m(2), p<0.05), waist circumference (95.6± 0.4 cm vs 96.4 ± 0.3 cm, p<0.05), and systolic blood pressure (121.9± 0.4 mmHg vs 123.20 ± 0.3 mmHg, p<0.01) compared with nonconsumers. Tree nut consumers also had a lower weight (78.8± 0.7 kg vs 80.7 ± 0.3 kg, p<0.05). Nut consumers had a lower percentage of two risk factors for MetS: hypertension (31.5%± 1.0% vs 34.2% ± 0.8%, p<0.05) and low high density lipoprotein-cholesterol (HDL-C) (29.6%± 1.0% vs 34.8% ± 0.8%, p<0.01). Tree nut consumers had a lower prevalence of four risk factors for MetS: abdominal obesity (43.6%± 1.6% vs 49.5% ± 0.8%, p<0.05), hypertension (31.4%± 1.2% vs 33.9% ± 0.8%, p<0.05), low HDL-C (27.9%± 1.7% vs 34.5% ± 0.8%, p<0.01), high fasting glucose (11.4%± 1.4% vs 15.0% ± 0.7%, p<0.05), and a lower prevalence of MetS (21.2%± 2.1% vs 26.6% ± 0.7%, p<0.05).

CONCLUSION: Nut/tree nut consumption was associated with a decreased prevalence of selected risk factors for cardiovascular disease, type 2 diabetes, and MetS.

Study Type : Human Study

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