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Metabolic and Appetite Parameters Following Addition of Whey Protein to a Fat-based Breakfast

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Northumbria University

Status

Completed

Conditions

Healthy

Treatments

Dietary Supplement: Whey Protein
Other: High Fat Breakfast Meal

Study type

Interventional

Funder types

Other

Identifiers

NCT02651051
HLS-13-131017b

Details and patient eligibility

About

The purpose of this study is to investigate whether the addition of whey protein to a breakfast high in fat content will influence acute metabolic and appetite responses, as well as responses to a subsequent lunch meal.

Full description

Participants will be asked to report to the lab for their first main trial, having not eaten for 12 hours, and refrained from caffeine and alcohol intake and strenuous exercise for 24 hours. Both trials will take place at the same time of day.

Upon arrival height and body mass will be recorded and a cannula will be inserted into a vein in the back of the hand and a 10 ml blood sample will be taken.A visual analogue scale (VAS) will then be used to subjectively measure the participant's appetite pre-breakfast.

Participants will then be provided with one of the two breakfast meals that are being tested in a randomised order. The two breakfasts consist of a high fat breakfast or high fat plus additional whey protein. A drink of water shall also be consumed, the volume of which depends on the trial being carried out. The high fat breakfast will consist of scrambled egg yolks made with single cream and butter (Tesco, Hertfordshire, UK). The macronutrient distribution of the breakfast is 12% protein, 3% carbohydrate, 85% fat (1771 kJ; 423 kcal total). For the whey protein trial, 23.9g whey protein isolate (Lacprodan DI-9224, Arla Foods, Denmark) shall be added to water and incorporated into each meal as a drink on the side, in order to provide 20g whey protein.

A timer shall be set when the participant takes their first mouthful of breakfast, and they will be required to rest for the following 3 hours. At 15, 30, 45, 60, 90, 120, 150 and 180 minutes post-breakfast 10 ml blood samples shall be collected. Every 30 minutes during this period the appetite VAS will also be completed. After this participants will be provided with a standardised lunch meal which shall consist of pasta with a tomato and basil sauce, olive oil and cheddar cheese, along with a 350 ml drink of water. The macronutrient distribution of the lunch is 13% protein, 49% carbohydrate, 38% fat. Following this, the post-breakfast procedure shall be repeated for another period of 3 hours.

Enrollment

10 patients

Sex

Male

Ages

18 to 40 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Aged 18-40 years old (male)
  • Recreationally active (>30 minutes of structured exercise, 5 times/week)

Exclusion criteria

  • Metabolic disease (e.g. Type 2 diabetes, thyroid disorders)
  • Taking any prescribed medication
  • Regular breakfast skipper
  • Food allergies or intolerances
  • Eating disorders
  • Smoker

Trial design

Primary purpose

Basic Science

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Single Blind

10 participants in 2 patient groups

High Fat Breakfast Meal
Sham Comparator group
Description:
High fat breakfast meal served without addition of whey protein isolate
Treatment:
Other: High Fat Breakfast Meal
High Fat Breakfast Meal + Whey Protein
Experimental group
Description:
High fat breakfast meal served with addition of whey protein isolate
Treatment:
Other: High Fat Breakfast Meal
Dietary Supplement: Whey Protein

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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