The goal of this clinical trial is to compare features of metabolism in healthy, young adults after they consume four meals of differing fat quantity. The main question this trial aims to answer is how does increasing fat quantity impact glucose tolerance, glucose and insulin metabolism, and hormones involved in hunger. Participant will consume four meals consisting of either 20, 40, 60, or 80% energy from fat.
The long-term consumption of high-fat foods can lead to unhealthy changes in the functioning of the body, giving rise to metabolic diseases such as type 2 diabetes. Similarly, short-term high-fat diets have also been shown to disrupt how the body performs but there is a lack of information regarding how a single high-fat meal can disrupt metabolism. Comparing meals of different fat quantity, without changing the overall energy intake (calories), will help us understand the short-term effect of fat ingestion on the functioning of the body and whether increasing the amount of fat in a meal is related to the level of dysfunction in the body. Therefore, the investigators will provide participants with four meals of varying fat quantity and in the period following the meal, the investigators will take blood samples to determine any changes that occur in the body in response to different levels of fat.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Enrollment
10
Provided to participants once throughout duration of study, contains 20% fat
Provided to participants once throughout duration of study, contains 40% fat
Provided to participants once throughout duration of study, contains 60% fat
McMaster University, Ivor Wynne Centre
Hamilton, Ontario, Canada
Glucose tolerance
A 2-hour intravenous glucose tolerance test will be performed 4-hours after meal consumption
Time frame: Two hours (taking place following the 4-hour postprandial period)
Glucose and lipid metabolites
Postprandial availability of glucose (mM)
Time frame: During the 4-hour postprandial period
Glucose and lipid metabolites
Postprandial availability of insulin (µIU/mL)
Time frame: During the 4-hour postprandial period
Glucose and lipid metabolites
Postprandial availability of total cholesterol (mmol/L)
Time frame: During the 4-hour postprandial period
Glucose and lipid metabolites
Postprandial availability of low-density lipoprotein (mmol/L)
Time frame: During the 4-hour postprandial period
Glucose and lipid metabolites
Postprandial availability of high-density lipoprotein (mmol/L)
Time frame: During the 4-hour postprandial period
Glucose and lipid metabolites
Postprandial availability of non-esterified fatty acids (mmol/L)
Time frame: During the 4-hour postprandial period
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Provided to participants once throughout duration of study, contains 80% fat