Randomized controlled trial2019

The impact of reduced red and processed meat consumption on cardiovascular risk factors; an intervention trial in healthy volunteers

Simpson EJ, Clark M, Razak AA, Salter A

Food & function · 12 citations

Review labels

Lumps processed with unprocessed meat

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 diaries or recalls

Who paid for it

Funding
Independent funding
Government
Medical Research Council
Government
Biotechnology and Biological Sciences Research Council
Government
Innovate UK
Grants
Innovate UK (101732)

Based on 3 listed funder(s).

Publication

Published
2019-01-01 · Food Funct · vol. 10 · issue 10 · pp. 6690–6698
Publisher
Royal Society of Chemistry
Cited
16 citations · more than 89% of similar papers · 2.6× the field average
References
28 works
Access
Open access (hybrid journal) · CC-BY
Research areas
Nutritional Studies and Diet · Consumer Attitudes and Food Labeling · Agriculture Sustainability and Environmental Impact
Keywords
Red meat, Medicine, Consumption (sociology), Processed meat, Intervention (counseling), Environmental health, Food science, Biology
MeSH
animals, chickens, cattle, humans, cardiovascular diseases, risk factors, cohort studies, longitudinal studies, blood pressure, meat products, seafood, adult, middle aged, female, male, cholesterol, ldl, cholesterol, hdl, young adult, healthy volunteers

4 authors

From GB

  • Elizabeth J. Simpson · correspondingUniversity of Nottingham; National Institute for Health and Care Research; Queen's Medical Centre; Nottingham Biomedical Research Centre
  • Marie A. ClarkUniversity of Nottingham
  • Azlina A. RazakUniversity of Nottingham; Queen's Medical Centre
  • Andrew M. SalterUniversity of Nottingham

Abstract

Meat represents an important part of the diet for many adults, supplying essential amino acids and micronutrients. However, high red and processed meat (RPM) intake is implicated in the development of cardiovascular disease and dyslipidemia. This study aimed to reduce RPM consumption in healthy, non-obese omnivores (21-48 years), who ate RPM ≥4 times per week, and to investigate its effect on cardiovascular risk factors using a single-group longitudinal study design (comprising an initial 4-week baseline period, followed by a 12-week intervention). Participants (16M : 21F) were assessed before (BL) and after (T0) the pre-intervention period and before (T0), at week 6 (T6) and at the end of intervention (T12). In a subset (8M : 15F), haematological parameters were measured at BL, T6 and T12. Compared with BL, protein intake from RPM reduced by 67% at T6 and 47% at T12 (4-day dietary records). BMI, body fat mass, and blood pressure did not change over the intervention in the whole cohort, but mean total, LDL and HDL cholesterol were reduced in males at T12 (effect sizes -0.52, -0.41 and -0.15 mmol l-1, respectively; each P < 0.01), with no change in total : HDL ratio observed. In the study sub-set, haemoglobin concentration, plus red and white cell count fell during the intervention (estimated effect size ηp2 0.300, 0.301 and 0.354, respectively; each P < 0.001). It was possible for omnivores to approximately halve their RPM intake, and in males this dietary change appeared to reduce blood lipid concentrations. However, acute dietary changes to RPM intake may have had an unfavourable impact on haematological parameters.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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