Dietary Fatty Acid Profiles for Type 2 Diabetes

(METAc Trial)

AV
Overseen ByAlain Veilleux, PhD
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial explores how different types of dietary fats affect the body's production of certain chemicals from gut bacteria. Participants will consume meals rich in either saturated fats (like those in butter) or polyunsaturated fats (like those in fish) to observe effects on individuals with or without obesity and Type 2 diabetes. The goal is to understand how these dietary fats influence the body without requiring long-term diet changes. The study involves a nutritional intervention, adjusting participants' diets to include specific types of fats. Suitable candidates have a healthy weight, do not smoke, and have Type 2 diabetes but not insulin-treated diabetes. As an unphased trial, this study offers a unique opportunity to contribute to scientific understanding of diet and health without the commitment of a long-term intervention.

Will I have to stop taking my current medications?

The trial requires you to stop taking dietary supplements like vitamins and probiotics at least 2 weeks before starting. It doesn't specify about other medications, so you might not need to stop them, but it's best to check with the trial organizers.

What prior data suggests that this nutritional intervention is safe?

Research shows that changing one's diet can help manage type 2 diabetes. Studies have found these changes to be generally safe and easy to handle. In this trial, participants will consume foods high in either healthy fats (such as those in fish and nuts) or less healthy fats (such as those in butter and red meat) for a few days. These fats are common in many foods, and short-term dietary changes are usually safe for most people.

The research does not mention specific safety concerns for this type of short-term diet change. However, consulting a doctor before altering one's diet is always advisable, especially for those with existing health conditions.12345

Why are researchers excited about this trial?

Researchers are excited about the nutritional intervention for Type 2 Diabetes because it explores the impact of dietary fatty acids on blood sugar management. Unlike standard treatments like metformin or insulin, which focus on medication, this approach uses specific diets to potentially influence metabolism directly. By alternating between polyunsaturated and saturated fatty acids, the intervention aims to identify how these fats affect glucose levels, offering a more personalized and potentially less invasive way to manage the condition. This could lead to new dietary guidelines that complement existing treatments.

What evidence suggests that this nutritional intervention might be an effective treatment for Type 2 diabetes?

Research shows that changing one's diet can help manage Type 2 diabetes. Studies have found that working with dietitians on nutrition improves blood sugar levels and overall diabetes control. For instance, even a small decrease in HbA1c (a measure of blood sugar) significantly reduces the risk of diabetes-related health issues. Eating the right foods also aids in managing weight, blood pressure, and cholesterol. This trial will involve participants undergoing different dietary phases, including a polyunsaturated fatty acid (PUFA) diet and a saturated fatty acid (SFA) diet. These findings suggest that choosing healthier fats—such as switching from saturated fats to polyunsaturated fats—could benefit people with Type 2 diabetes.12467

Who Is on the Research Team?

AV

Alain Veilleux, PhD

Principal Investigator

Laval University

Are You a Good Fit for This Trial?

This trial is for men and women aged 45-65, with a BMI of 20-35 kg/m², who are generally healthy and have a moderate diet quality. They must understand French and have internet access. It's not for smokers, heavy drinkers, recent antibiotic users, those on omega-3 supplements or with significant weight changes recently.

Inclusion Criteria

Basic understanding of written French
Basic understanding of written French ;
The number of times you go to the bathroom each day.
See 10 more

Exclusion Criteria

You take omega-3 dietary supplements.
You currently use tobacco and cannabis.
I have type 1 diabetes or use insulin for my diabetes.
See 5 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

1-2 weeks

Run-in Diet

Participants undergo a 3-day run-in diet to standardize conditions before the main dietary interventions

3 days

Dietary Intervention

Participants follow a 2-day diet rich in polyunsaturated fatty acids (PUFA) and a 2-day diet rich in saturated fatty acids (SFA)

4 days

Follow-up

Participants are monitored for fasting and postprandial lipid metabolite production and gut microbiota composition

7 days

What Are the Treatments Tested in This Trial?

Interventions

  • Nutritional intervention
Trial Overview The study looks at how different types of fats in meals (saturated vs. polyunsaturated fatty acids) affect the production of certain metabolites by gut bacteria in people with/without obesity and Type 2 diabetes.
How Is the Trial Designed?
1Treatment groups
Experimental Treatment
Group I: SingleExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Laval University

Lead Sponsor

Trials
439
Recruited
178,000+

Published Research Related to This Trial

In a study of 11,264 participants with type 2 diabetes over several decades, higher intake of polyunsaturated fatty acids (PUFAs) was linked to lower cardiovascular disease mortality, suggesting that the type of dietary fat consumed is crucial for heart health.
Replacing saturated fats with PUFAs or linoleic acid could lead to significant reductions in both cardiovascular disease and total mortality, emphasizing the importance of dietary fat quality in managing health outcomes for individuals with type 2 diabetes.
Dietary fats and mortality among patients with type 2 diabetes: analysis in two population based cohort studies.Jiao, J., Liu, G., Shin, HJ., et al.[2022]
In a study of 2,397 participants with type 2 diabetes, the average intake of marine omega-3 fatty acids (mO-3FA) was low at 162 mg/day, but higher intake was linked to lower triglyceride levels, suggesting a beneficial effect on lipid control.
After a year of intensive lifestyle intervention aimed at weight loss, participants showed a significant decrease in mO-3FA intake, highlighting the need to explore the benefits of increasing omega-3 consumption in diabetes management.
Marine omega-3 fatty acid intake: associations with cardiometabolic risk and response to weight loss intervention in the Look AHEAD (Action for Health in Diabetes) study.Belalcazar, LM., Reboussin, DM., Haffner, SM., et al.[2021]
Strong evidence indicates that the total amount of carbohydrates consumed is more crucial for managing diabetes than the specific type of carbohydrate, highlighting the importance of portion control and meal planning.
Nutrition therapy is effective in achieving treatment goals for blood sugar, lipids, and blood pressure in individuals with type 2 diabetes, and ongoing monitoring is essential to evaluate the effectiveness of lifestyle changes and medication adjustments.
Prioritizing diabetes nutrition recommendations based on evidence.Franz, MJ.[2015]

Citations

Effects of 12 nutritional interventions on type 2 diabetesNumerous trials confirm dietary interventions benefit type 2 diabetes mellitus (T2DM) management, but the optimal model is unclear.
Effectiveness of dietetic intervention for people with type 2 ...Nutrition therapy provided by dietitians was associated with better clinical parameters of type 2 diabetes, including clinically significant improved glycaemic ...
results of the T2Diet Study randomised controlled trialEach 1% reduction in HbA1c represents a risk reduction of 21% for diabetes-related deaths, 14% for heart attacks, and 37% for microvascular ...
The effectiveness of medical nutrition therapy provided by a ...In adults with prediabetes, MNT was effective in improving glycemic outcomes, anthropometrics, blood pressure, and most lipid levels. However, ...
Effectiveness of a Nutrition Education Program for Patients ...The intervention improved patients' body mass index, body composition, fasting glucose, postprandial glucose, triglycerides, HDL/LDL cholesterol and cholesterol ...
Nutrition Therapy for Adults With Diabetes or PrediabetesThe DPP demonstrated that an intensive lifestyle intervention resulting in weight loss could reduce the incidence of type 2 diabetes for adults ...
Expert consensus on medical nutrition therapy for people ...In people with T2D, MNT delivered by a trained professional has a greater effect on HbA1c, weight, and LDL-C (5) compared to when it is ...
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