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The purpose of this study is to determine if a low fructose intake could have an impact on weight loss, uric acid levels and the components of the metabolic syndrome (glucose, cholesterol, triglycerides, insulin resistance, high blood pressure).
Overweight and obesity are now considered a growing public health problem in Mexico and worldwide. This epidemic has been attributed to dietary fructose consumption. Although experimental models have demonstrated a role of fructose in the development of obesity, metabolic syndrome and kidney disease, data in human models is lacking. The purpose of this study is to determine if a low fructose intake could have an impact on the components of the metabolic syndrome. The primary endpoint will be to determine the impact of low fructose on weight loss. Secondary endpoints will evaluate the impact of low fructose diet on blood pressure and cardiovascular biochemical profile.
If fructose is a causal pathway to obesity and metabolic syndrome, it may represent an important target to mitigate this important health problem.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low fructose arm | Active Comparator | Overweighted or obese previously healthy adults (with no other comorbidities, defined as: Diabetes (DM1 or DM2), hypertension, chronic kidney disease (CKD), hepatic damage, dyslipidemia medication, anemia, malignancy or pregnancy), with a Body Mass Index (BMI) of >25 kilograms(weight)/ squared meters (height). They will be randomized to a 1500, 1800 or 2000 kilocalories diet calculated by Harris Benedict equation, thermic effect of foods and rest energy (without exercise). This group will be assigned to a 2 week period of low fructose diet (less than 10 grams/day ) followed by a 4 week period of less than 20 grams/day fructose diet levels. Total Time of intervention 6 weeks for each patient |
|
| Normal fructose arm | Active Comparator | Overweighted or obese previously healthy adults (with no other comorbidities; defined as: Diabetes Mellitus (DM1 or DM2), hypertension, chronic kidney disease (CKD), hepatic damage, dyslipidemia medication, anemia, malignancy or pregnancy), with a Body Mass Index (BMI) of >25 kilograms(weight)/ squared meters (height). Participants will be randomized to a 1500, 1800 or 2000 kilocalories diet (of 15% proteins, 30% lipids and 55% carbohydrates); calculated by Harris Benedict equation, thermic effect of foods and energy (without exercise). This group will receive a controlled fructose diet between 50 and 70 grams/day of fructose intake. Total time of intervention:6 weeks for each patient |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| low fructose | Dietary Supplement | patients will receive a low fructose diet to evaluate possible changes in weight loss after a 6 week period of receiving a caloric intake (proteins, fats and carbohydrates) based on their healthy-desired weight. Participants will be randomized to a 1500, 1800 or 2000 kilocalories diet calculated by Harris Benedict equation, thermic effect of foods and energy (without exercise). low fructose arm: a 2 week period of low fructose diet (less than 10 grams/day ) followed by a 4 week period of "healthy" fructose diet levels (less than 20 grams/day).Baseline measurements and weekly monitoring of somatometry parameters (BMI, %body fat, waist and hip Index, blood pressure), lipid profile and uric acid levels will be done. |
| Measure | Description | Time Frame |
|---|---|---|
| Somatometry: including weight, height, Body Mass Index (BMI), % Body fat levels, waist and hip index, and blood pressure levels measurements performed by a single evaluator and calibrated equipment | measurements will be performed by a trained evaluator | results obtained at the same day of evaluation (weekly monitoring during 6 weeks for each patient) |
| Measure | Description | Time Frame |
|---|---|---|
| Blood samples: to evaluate metabolic syndrome parameters | samples will be obtained after an eight fasting period | basal and final (6 weeks interval between the basal and final results, for each patient) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Magdalena Madero, MD | Instituto Nacional de CardiologĂa Ignacio Chávez | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Instituto Nacional de CardiologĂa Igancio Chávez | Mexico City | Mexico City | 14080 | Mexico |
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| ID | Term |
|---|---|
| D050177 | Overweight |
| D009765 | Obesity |
| D024821 | Metabolic Syndrome |
| D033461 | Hyperuricemia |
| D006973 | Hypertension |
| ID | Term |
|---|---|
| D044343 | Overnutrition |
| D009748 | Nutrition Disorders |
| D009750 | Nutritional and Metabolic Diseases |
| D001835 | Body Weight |
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| Normal fructose arm | Dietary Supplement | patients will receive a normal fructose diet to evaluate possible changes in weight loss after a 6 week period of receiving a caloric intake (proteins, fats and carbohydrates) based on their healthy-desired weight. Participants will be randomized to a 1500, 1800 or 2000 kilocalories diet calculated by Harris Benedict equation, thermic effect of foods and energy (without exercise). Normal fructose arm: participants will receive a 6 week period of normal fructose diet between 50 to 70 grams/day. Baseline measurements and weekly monitoring of somatometry parameters (BMI, %body fat, waist and hip Index, blood pressure), lipid profile and uric acid levels will be done. |
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| D012816 |
| Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D007333 | Insulin Resistance |
| D006946 | Hyperinsulinism |
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D010335 | Pathologic Processes |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |