Randomized controlled trial2014

A moderate-fat diet containing pistachios improves emerging markers of cardiometabolic syndrome in healthy adults with elevated LDL levels

Holligan SD, West SG, Gebauer SK, Kay CD, Kris-Etherton PM

The British journal of nutrition · 35 citations

Review labels

Controlled feeding

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Randomized controlled trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function
Intake measured by
Food provided by researchers

Who paid for it

Funding
Independent funding
University or hospital
Pennsylvania State University
Government
National Institutes of Health
Government
Natural Sciences and Engineering Research Council of Canada
Government
National Center for Research Resources
Government
NCRR NIH HHS
Grants
National Center for Research Resources (M01 RR10732); National Institutes of Health (M01-RR-10-732)

Based on 5 listed funder(s).

Publication

Published
2014-07-10 · Br J Nutr · vol. 112 · issue 5 · pp. 744–752
Publisher
Cambridge University Press
Cited
45 citations · more than 90% of similar papers · 2.9× the field average
Impact
Top 10% most cited in its field
References
49 works
Access
Free to read
Research areas
Nuts composition and effects · Natural Products and Biological Research · Phytochemicals and Antioxidant Activities
Keywords
Metabolic syndrome, Food science, Medicine, Triglycerides blood, Internal medicine, Obesity, Biology, Cholesterol, Triglyceride
MeSH
humans, pistacia, nuts, cardiovascular diseases, insulin resistance, cholesterol, sitosterols, phytosterols, dietary fats, triglycerides, lipoproteins, lipoproteins, ldl, c-reactive protein, anticholesteremic agents, phytotherapy, cross-over studies, middle aged, female, male, biomarkers, metabolic syndrome

5 authors

From US, GB

  • Simone D. HolliganPennsylvania State University
  • Sheila G. WestPennsylvania State University
  • Sarah K GebauerPennsylvania State University; Beltsville Agricultural Research Center
  • Colin D. KayUniversity of East Anglia; Pennsylvania State University; Norwich Research Park
  • Penny M. Kris‐Etherton · correspondingPennsylvania State University

Abstract

A randomised, cross-over, controlled-feeding study was conducted to evaluate the cholesterol-lowering effects of diets containing pistachios as a strategy for increasing total fat (TF) levels v. a control (step I) lower-fat diet. Ex vivo techniques were used to evaluate the effects of pistachio consumption on lipoprotein subclasses and functionality in individuals (n 28) with elevated LDL levels ( ≥ 2·86 mmol/l). The following test diets (SFA approximately 8 % and cholesterol < 300 mg/d) were used: a control diet (25 % TF); a diet comprising one serving of pistachios per d (1PD; 30 % TF); a diet comprising two servings of pistachios per d (2PD; 34 % TF). A significant decrease in small and dense LDL (sdLDL) levels was observed following the 2PD dietary treatment v. the 1PD dietary treatment (P= 0·03) and following the 2PD dietary treatment v. the control treatment (P= 0·001). Furthermore, reductions in sdLDL levels were correlated with reductions in TAG levels (r 0·424, P= 0·025) following the 2PD dietary treatment v. the control treatment. In addition, inclusion of pistachios increased the levels of functional α-1 (P= 0·073) and α-2 (P= 0·056) HDL particles. However, ATP-binding cassette transporter A1-mediated serum cholesterol efflux capacity (P= 0·016) and global serum cholesterol efflux capacity (P= 0·076) were only improved following the 2PD dietary treatment v. the 1PD dietary treatment when baseline C-reactive protein status was low ( < 103μg/l). Moreover, a significant decrease in the TAG:HDL ratio was observed following the 2PD dietary treatment v. the control treatment (P= 0·036). There was a significant increase in β-sitosterol levels (P< 0·0001) with the inclusion of pistachios, confirming adherence to the study protocol. In conclusion, the inclusion of pistachios in a moderate-fat diet favourably affects the cardiometabolic profile in individuals with an increased risk of CVD.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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