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The proposed intervention study is designed to evaluate the physiological impact of the regular consumption of the developed foods with improved nutrient profile (verum) in comparison to commercial available foods (control) by a controlled, randomized, double-blind crossover study with patients with measurable cardiovascular risk factors (LDL cholesterol ≥ 120 mg/dl (≥ 3 mmol/l) / Triacylglycerides ≥ 135 mg/dl (≥ 1,5 mmol/l)).
The proposed intervention study is designed to evaluate the physiological impact of regularly consumption of the food range with improved nutrient profile (verum) in comparison to commercially available foods (control/placebo).
The controlled, randomized, double-blind crossover study consists of 4-week investigation periods with a 11-week wash-out period in between. Patients (men, female, n = 54 + 6) with measurable cardiovascular risk (LDL cholesterol ≥ 120 mg/dl (≥ 3 mmol/l) / triacylglycerides ≥ 135 mg/dl (≥ 1,5 mmol/l)), are involved.
The product range includes sausages (raw, boiled and cooked varieties) and pasta fortified with dietary fibers, fish oil and plant protein, resulting in a reduction of fat and energy content. Eggs, bread, bread rolls, and mushrooms with higher vitamin D content complete the innovative product range. Additionally, participants receive ice cream where sugar is replaced by xylite.
In the control period, the participants receive commercially available foods (sausages (raw, boiled and cooked varieties), pasta, eggs, bread, bread rolls, and mushrooms, ice cream) with traditional nutrient profile.
The products will be offered in neutral packaging and are provided regularly by the study team. All personal (participants, physicians) are blinded.
At the beginning, participants are randomly allocated into the verum or the control/placebo group. After the wash-out phase the interventions will be crossed between the groups and the respective products are consumed also for four weeks. In the run-in phase of the study, all patients are invited to a medical examination to ensure the fulfillment of inclusion criteria.
At the beginning and at the end of each study period baseline parameters (BMI, waist-to-hip ratio, blood pressure, bioelectrical impedance measurement) are assessed, lifestyle questionnaires are filled, and venous blood samples are collected for the determination of cardiovascular risk markers.
Subjects document their normal nutritional habits over seven days in a food frequency protocol (FFP) before start and finish of each period. In addition, patients keep a diary for the documentation of nutrition, medication and adverse effects over both study periods.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| verum | Experimental | The food range is comprised of: sausages (1100 g per week / exchange of saturated fatty acids by long-chain unsaturated omega-3 fatty acids from fish oil (Maris Oil ED0222N rich in docosahexaenoic acid (DHA)), partially exchange of fat by plant protein (sesame)), eggs (3 eggs per week / 2 µg vitamin D per egg), 100 g mushrooms per day (5 µg Vitamin D/d), one bread per week (5 µg Vitamin D/d), bread rolls (16 g dietary fibers/d), 100 ml ice cream per week (exchange of sugar by xylitol), 3x 70 g pasta per week (3 x 10 g dietary fibers per week) |
|
| control | Active Comparator | In the placebo period, the participants receive commercially available foods (sausages (raw, boiled and cooked varieties), eggs, mushrooms, bread, bread rolls, ice cream and pasta) with traditional nutrient profile. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| food range | Dietary Supplement | The food range is comprised of: sausages (1100 g per week) eggs (3 eggs per week), 100 g mushrooms per day, one bread per week, bread rolls, 100 ml ice cream per week, 3x 70 g pasta per week |
| Measure | Description | Time Frame |
|---|---|---|
| LDL cholesterol | cardiovascular risk factor | change from baseline after 4 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| blood lipids | total cholesterol, HDL cholesterol, triglycerides in mmol/l | change from baseline after 4 weeks |
| anthropometric data | body mass index (kg/m2) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Christine Dawczynski, PhD | University of Jena | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Friedrich Schiller University | Jena | Thuringia | 07743 | Germany |
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| Label | URL |
|---|---|
| recruiting | View source |
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The controlled, randomized, double-blind crossover study consists of a 4-week investigation periods with a 11-week wash-out period in between. At the beginning, participants are randomly allocated into the verum or the control/placebo group. After the wash-out phase the interventions are crossed between the groups and the respective food range is consumed also for four weeks.
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The foods are offered in neutral packaging and are provided regularly by the study team. All personal (participants, care provider) are blinded.
| change from baseline after 4 weeks |
| blood pressure | systolic blood pressure (mm Hg) diastolic blood pressure (mmHg) | change from baseline after 4 weeks |
| lipoprotein a | lipoprotein a (mg/l) | change from baseline after 4 weeks |
| high-sensitive c-reactive protein | high-sensitive c-reactive protein (mg/dl) | change from baseline after 4 weeks |
| homocysteine | homocysteine (µmol/l) | change from baseline after 4 weeks |
| apolipoproteins | apolipoproteins A1, B (g/l) | change from baseline after 4 weeks |
| glucose (fasting) | glucose (fasting) (mmol/l) | change from baseline after 4 weeks |
| insulin (fasting) | insulin (fasting) (mU/l) | change from baseline after 4 weeks |
| hemoglobin A1c (fasting) | hemoglobin A1c (fasting) (%) | change from baseline after 4 weeks |
| malodialdehyde modified LDL cholesterol | malodialdehyde modified LDL cholesterol (U/l) | change from baseline after 4 weeks |
| fatty acid distribution in plasma lipids | fatty acid distribution in plasma lipids (%FAME) | change from baseline after 4 weeks |
| aspartate transaminase (AST) | aspartate transaminase (AST) | change from baseline after 4 weeks |
| alanine transaminase (ALT) | alanine transaminase (ALT) | change from baseline after 4 weeks |
| gamma-glutamyltransferase | gamma-glutamyltransferase (gGT) | change from baseline after 4 weeks |
| Lactate dehydrogenase | Lactate dehydrogenase (LDH) | change from baseline after 4 weeks |
| cholinesterase | cholinesterase | change from baseline after 4 weeks |
| kalium | kalium (mmol/l) | change from baseline after 4 weeks |
| transferrin | transferrin (g/l) | change from baseline after 4 weeks |
| ferritin | ferritin (µg/l) | change from baseline after 4 weeks |
| bioelectrical impedance | body water, body fat, lean body mass, extracellular mass (ECM), body cell mass (BCM) | change from baseline after 4 weeks |
| vitamin A | vitamin A (mmol/l) | change from baseline after 4 weeks |
| vitamin D | vitamin A (nmol/l) | change from baseline after 4 weeks |
| vitamin E | vitamin E (µmol/l) | change from baseline after 4 weeks |
| vitamin B1 | vitamin B1 (nmol/l) | change from baseline after 4 weeks |
| vitamin B6 | vitamin B6 (nmol/l) | change from baseline after 4 weeks |
| vitamin B12 | vitamin B12 (pmol/l) | change from baseline after 4 weeks |
| vitamin B12 status | holotranscobalamine (pmol/l) | change from baseline after 4 weeks |
| creatinine | creatinine (mmol/24 h) | change from baseline after 4 weeks |
| natrium | natrium (mmol/24 h) | change from baseline after 4 weeks |
| magnesium | magnesium (mmol/24 h) | change from baseline after 4 weeks |
| zinc | zinc (µmol/24 h) | change from baseline after 4 weeks |
| albumine | albumine (mg/l) (24 h urine) | change from baseline after 4 weeks |
| uric acid | uric acid (mg/dl) (24 h urine) | change from baseline after 4 weeks |