Dietary Polyphenols and Lipid Oxidation

Maastricht University Medical Centre (MUMC)

Status

Completed

Conditions

Obesity, Insulin Sensitivity, Type 2 Diabetes Mellitus

Treatments

Dietary Supplement: Comparison of different combinations of polyphenols with respect to effects on fat oxidation

Study type

Interventional

Funder types

Other

Identifiers

NCT01302639

MEC 10-03-032.7

Details and patient eligibility

About

There are strong indications that (combinations of) polyphenols may be attractive candidates in the prevention of the metabolic syndrome and diabetes through modulation of pathways of fatty acid metabolism and mitochondrial function. We hypothesize that the combination of specific polyphenols, with partly distinct mechanisms of action, may have physiologically significant effects on fat oxidation through additive or synergistic effects, thereby improving body composition, insulin sensitivity and preventing type 2 diabetes. The following objective will be addressed in the current study:

(1) to test short term (3 day) effects of combinations of polyphenols (supplements of EGCG either in combination with resveratrol or with resveratrol and genistein) to affect systemic lipolysis and fat oxidation during overnight fasted conditions and after ingestion of a high fat meal in overweight subjects

Enrollment

18 patients

Sex

All

Ages

30 to 70 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

overweight men and women (BMI≥25kg/m2- 29.9 kg/m2), aged 30-70 years, Caucasian, normal fasting glucose (< 6.1 mmol/L) and blood pressure (systolic blood pressure 100-140 mmHg, diastolic blood pressure 60-90 mmHg), weight stable in last 3 months (± 2kg). Exclusion criteria:

Exclusion criteria

women lactating, pregnant or (post)menopausal, regular smokers, people with intensive fitness training, eg. athletes (≥ 3 per week ≥ 1 hour training), habitual consumption of green tea (more than 1 cup per day) or products containing green tea extract, total caffeine consumption > 300 mg/day, alcohol intake >20 g/day, any dietary vitamins or dietary supplements, diabetes mellitus (defined as FPG ≥ 7.0 mmol/l and/or 2hPG ≥ 11.1 mmol/l); serious pulmonary, cardiovascular, hepatic or renal disease : history of cardiovascular disease, all other relevant medical disorders that potentially interfere with this trial, current use of medication interfering with study intervention or interfering with study endpoints/hypotheses.