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Omega (n)-3 PUFA Enriched Beef & Health Outcomes.

U

Ulster University

Status

Completed

Conditions

CVD
Inflammation
Cholesterol; Metabolic Disorder

Treatments

Dietary Supplement: Three portions per week (690g beef (raw weight)) for 5 weeks

Study type

Interventional

Funder types

Other

Identifiers

NCT03967678
18/WS/0149

Details and patient eligibility

About

Red meat is an integral component of the habitual diet among the UK and Irish population, with adults consuming an average of 71grams/day. Although typically high in saturated fatty acids (SFA), red meat is also an important dietary source of protein and essential nutrients including iron, zinc, B vitamins and long chain n-3 polyunsaturated fatty acids (PUFA) which provide numerous benefits to human health, particularly related to cardiovascular disease (CVD) risk. N-3 and n-6 PUFA are a family of fatty acids with important roles in cardiovascular health, and it is often recommended in dietary guidelines to replace SFA with unsaturated fats, such as PUFA. Owing to the social and economic burden of CVD, increasing the proportions of these unsaturated fatty acids, in combination with a reduction in SFA within meat, could have a large impact on CVD risk at the population level, whilst retaining the beneficial nutrients and n-3 PUFA which meat provides.

In this research, a total of 90 eligible and consenting participants will be randomly allocated to consume three portions per week of n-3 enriched beef (from either dietary supplemented or grass-fed cattle) or control beef (from standard supply). This beef will be offered within a lunchtime meal and served from the Human Intervention Studies Unit at Ulster University, Coleraine for a period of 5 weeks. A fasting blood sample will be taken before and after intervention to determine the effect the n-3 enriched beef on cholesterol concentrations, lipid profile, PUFA status and inflammation. Blood pressure, stiffness of the arteries and body shape, size and composition will also be assessed, and some health and lifestyle habits will be captured using questionnaires.

Enrollment

90 patients

Sex

All

Ages

20+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Free-living, apparently healthy adults
  • Aged 20+ years at recruitment
  • Low oily fish consumers (<2 servings/mo), or those willing to reduce their fish consumption 1 month prior to commencing the study
  • Non-smokers
  • Not regularly consuming plant stanols or other n-3 enriched foodstuffs

Exclusion criteria

  • Non-free-living adults
  • Adults <20 years at recruitment
  • Oily fish consumers (2 servings/mo or more)
  • Current smokers
  • Pregnant/lactating females (or planning to become pregnant)
  • Food allergy or intolerance that would prevent consumption of the study meals
  • Diagnosed with a chronic medical condition (such as diabetes; CVD; autoimmune/ inflammatory disorders; cancer)
  • Prescribed cholesterol or blood pressure lowering medications
  • Currently taking any fish oil-containing supplement Daily consumption of plant stanols or other n-3 enriched foodstuffs

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Triple Blind

90 participants in 3 patient groups, including a placebo group

Beef from standard supply
Placebo Comparator group
Treatment:
Dietary Supplement: Three portions per week (690g beef (raw weight)) for 5 weeks
n-3 enriched beef from dietary supplement finished cattle
Experimental group
Treatment:
Dietary Supplement: Three portions per week (690g beef (raw weight)) for 5 weeks
n-3 enriched beef from grass finished cattle
Active Comparator group
Treatment:
Dietary Supplement: Three portions per week (690g beef (raw weight)) for 5 weeks

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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