Skip to main content
OpenTrials
Completed

NCT Number: NCT03950752

Effect of Consumption of Bagel Without Palm Oil on Postprandial Lipidemia

Postprandial lipemia produced by fat intake is a major risk factor for the development of cardiovascular diseases (CVD), the most important cause of disease and death in the Western world. Scientific evidence shows that the consumption of saturated fatty acids has a potential harmful effect on postprandial lipemia compared to the intake of monounsaturated fatty acids. The magnitude of postprandial lipemia is also determined by the health status of individuals, being altered in individuals with metabolic disorders associated with the development of CVD, such as hypertriglyceridemia.

Palm oil is widely used in bakery products because it is more economical compared to other fats and oils of other origin and for its stability properties that contribute to this type of food. This oil has a profile of fatty acids, rich in saturated fatty acids, mainly palmitic acid, which as mentioned above, is associated with health alterations. In addition, the investigators must add the environmental problems that are generated by the massive cultivation of the plant from which palm oil is extracted (oil palm Elaeis guineensis), including the loss of thousands of hectares of tropical forest and endangering to dozens of animal species from deforested areas.

The proliferation of all these arguments associated with the effect on the health and environment of the consumption of palm oil has given way to a paradigm shift in the use of palm oil in the food sector.

The hypothesis of the study is that consumption of bagels with a composition optimized in fatty acids, eliminating the content of palm oil and replacing it with high oleic sunflower oil and stearic acid completely hydrogenated without trans fatty acids, so that the same amount of fat is maintained, will decrease the postprandial lipemia, compared to the consumption of bagels with a more conventional composition in fatty acids, in healthy and / or with mild-moderate hypertriglyceridemia individuals.

The main objective of this study was to evaluate the effect of acute consumption of bagels without palm oil in its formulation and with an optimized fatty acid composition on postprandial lipemia measuring the evolution of plasma triglyceride levels in healthy and/or with mild-moderated hypertriglyceridemia individuals.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Hyperlipemia Cardiovascular Diseases Dyslipidemias Hyperlipidemias Lipid Metabolism Disorders Metabolic Diseases Nutritional and Metabolic Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Centro Tecnológico de Nutrición y Salud (Eurecat-Reus)

Reus, Tarragona, Spain

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

healthy population:

  • Men and women over 18 years of age.
  • Sign the informed consent.
  • Fasting serum triglyceride concentration < 150 mg/dL.

Exclusion criteria

healthy population:

  • Having diabetes (glucose ≥ 126 mg/dL).
  • BMI values <18 kg/m^2 o >25 kg/m^2.
  • Waist circumference > 150 cm.
  • Present dyslipidemia (LDL cholesterol > 189 mg/dL).
  • Present celiac disease or food allergies related to the study product.
  • Presenting anemia (hemoglobin ≤ 13 g/dL in men and ≤ 12 g/dL in women).
  • Being pregnant or intending to become pregnant.
  • Be in breastfeeding period.
  • Participate in or have participated in a clinical trial or nutritional intervention study in the last 30 days prior to inclusion in the study.
  • Follow a hypocaloric diet and/or pharmacological treatment for weight loss.

Inclusion criteria

mild-moderated hypertriglyceridemia population:

  • Men and women over 18 years of age.
  • Sign the informed consent.
  • Fasting serum triglyceride concentration ≥ 150 mg/dL.

Exclusion criteria

mild-moderated hypertriglyceridemia population:

  • Having diabetes (glucose ≥ 126 mg/dL).
  • Fasting serum triglyceride concentration > 880 mg/dL.
  • History of pancreatitis.
  • Serum LDL cholesterol levels > 189 mg/dL).
  • Present celiac disease or food allergies related to the study product.
  • Presenting anemia (hemoglobin ≤ 13 g/dL in men and ≤ 12 g/dL in women).
  • Being pregnant or intending to become pregnant.
  • Be in breastfeeding period.
  • Participate in or have participated in a clinical trial or nutritional intervention study in the last 30 days prior to inclusion in the study.
  • Follow a hypocaloric diet and/or pharmacological treatment for weight loss.

Treatment and study plan

Optimized Bagel

Combination Product

Participants will eat 132g of a bagel with an optimized composition in fatty acids in only one day, representing an ingestion of 556.5 kcal and 33g of total fat, of which 4.41g are saturated fatty acids, 24.27g are monounsaturated fatty acids, and 4.28g are polyunsaturated fatty acids.

Conventional Bagel

Combination Product

Participants will eat 132g of a bagel with a conventional composition in fatty acids in only one day, representing an ingestion of 589.0 kcal and 35.6g of total fat, of which 16.76g are saturated fatty acids, 13.00g are monounsaturated fatty acids, and 5.81g are polyunsaturated fatty acids

Primary outcomes

  1. Postprandial triglycerides levels

    Time frame: Triglyceride levels in plasma will be determined before consuming bagels and after ingestion of bagels at 30 minutes, 1 hour, 2 hours, 4 hours and 6 hours at Visit 1 and Visit 2.

    Evolution of postprandial triglycerides levels in blood, assessed as area under the curve (AUC).

    Serum triglycerides levels will be measured by standardized methods in a Cobas Mira Plus autoanalyzer (Roche Diagnostics Systems, Madrid, Spain).

Secondary outcomes

  1. Changes in endothelial function

    Time frame: Endothelial function will be measured at 4 hours after the consumption of bagels at Visit 1 ad Visit 2.

    Measurement of the endothelial function using the Laser-Doppler technique.

  2. Changes in blood pressure (measured in mmHg)

    Time frame: Blood pressure will be measured before consuming bagels and at 4 hours after the consumption of bagels at Visit 1 and Visit 2.

    Systolic and diastolic blood pressure (SBP and DBP) will be measured twice after 2-5 minutes of patient respite, seated, with one-minute interval in between, using an automatic sphygmomanometer (OMRON HEM-907; Peroxfarma, Barcelona, Spain).

  3. Evolution of postprandial glucose and insulin levels

    Time frame: Glucose and insulin plasma levels will be determined before consuming bagels and at 30 minutes, 1 hour, 2 hours and 4 hours after the consumption of bagels at Visit 1 and Visit 2.

    Evolution of postprandial glucose and insulin levels in blood. It will be measured as AUC.

    Serum glucose and insulin levels will be measured by standardized methods in a Cobas Mira Plus autoanalyzer (Roche Diagnostics Systems, Madrid, Spain).

  4. Evolution of postprandial non-esterified fatty acids, total cholesterol, LDL and HDL cholesterol blood levels.

    Time frame: Non-esterified fatty acids, total cholesterol, LDL and HDL cholesterol plasma levels will be determined before consuming bagels and at 1 hour, 2 hours, 4 hours and 6 hours after the consumption of bagels at Visit 1 and Visit 2.

    Evolution of non-esterified fatty acids, total cholesterol, LDL and HDL cholesterol in blood after the consumption of bagels.

    Serum parameters will be measured by standardized methods in a Cobas Mira Plus autoanalyzer (Roche Diagnostics Systems, Madrid, Spain).

  5. Evolution of postprandial Apolipoprotein (Apo) B-48, Apo B100 and Apo A1 in blood.

    Time frame: Apo B48, Apo B100 and Apo A1 plasma levels will be determined before consuming bagels and at 4 hours and 6 hours after the consumption of bagels at Visit 1 and Visit 2.

    Evolution of Apo B48, Apo B100 and Apo A1 in blood after the consumption of bagels.

    Apo B100 and Apo A1 in serum will be measured by standardized methods in a Cobas Mira Plus autoanalyzer (Roche Diagnostics Systems, Madrid, Spain). Apo B48 in serum will be measured by an ELISA kit.

  6. Evolution of postprandial levels in blood of inflammation, thrombosis and oxidative stress markers in blood.

    Time frame: IL-6, E-selectin, ICAM, VCAM, PA-1, Thrombomodulin and ORAC plasma levels will be determined before consuming bagels and at 4 hours and 6 hours after the consumption of bagels at Visit 1 and Visit 2.

    Evolution of the inflammation markers Interleukin 6 (IL-6), E-selectin, Intercellular adhesion molecule-1 (ICAM) and Vascular cellular adhesion molecule-1 (VCAM), the thrombosis markers Plasminogen activator 1 (PA-1) and Thrombomodulin, and the oxidative stress markers Oxygen Radical Absorbance Capacity (ORAC) and Malondialdehyde.

    Serum parameters will be measured by human ELISA kits.

  7. Evolution of postprandial lipoprotein lipase activity in blood.

    Time frame: LPL activity levels in plasma wil be measurd before consuming bagels and at 4 hours and 6 hours after the consumption of bagels at Visit 1 and Visit 2.

    Evolution of postprandial activity levels of lipoprotein lipase (LPL) in blood. It will measured by a fluorometric kit.

    Serum activity of LPL will be measured by an fluorometric kit.

  8. Fatty acid composition of postprandial serum triglycerides levels in blood.

    Time frame: Fatty acid composition of serum triglycerides will be measured before consuming bagels and at 6 hours after the consumption of bagels at Visit 1 and Visit 2.

    Evaluation of fatty acid composition of serum triglycerides in blood. It will be measured by liquid chromatography coupled to mass spectrometry.

Sponsors and collaborators

Lead sponsor

Technological Centre of Nutrition and Health, Spain

Other

Collaborators

  • Europastry S.A.
  • Fundació Eurecat
  • Hospital Universitari Sant Joan de Reus

Registry information

Official study title

Effect of Consumption of Bagel Without Palm Oil on Postprandial Lipidemia in Healthy or With Mild-Moderate Hypertriglyceridemia Subjects. Postprandial, Randomized, Controlled, Crossover and Double-Blind Study (PALMFREE)

Acronym: PALMFREE

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
May 15, 2019
Registry last updated
Mar 2, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.