Inclusion Criteria:  Present a 30≥BMI≥40 kg/m2, Present a waist circumference >88 cm Must be weight-stable (±2 kg last 6 months) Must be sedentary (<2 times/week of 30 min of continuous exercise) Must be able to read in English Must to present no history of alcohol or drugs abuse  In addition, Women will be included if:  • Must be pre-menopausal with a regular menstrual cycle  Exclusion Criteria:  present any history or evidence of cardiovascular disease present any history or evidence of peripheral vascular disease present any history or evidence of stroke present a current diagnosis of an axis 1 psychiatric disorder (i.e. mood, anxiety and eating disorders); be insulin dependent (75g oral glucose tolerance test) present a known renal and/or liver disease asthma requiring therapy plasma cholesterol > 8 mmol/L systolic blood pressure > 140 mmHg or diastolic blood pressure > 90 mmHg present previous history of inflammation disease present previous history of cancer present untreated thyroid or pituitary disease present a regular consumption of medications that could affect cardiovascular function and/or metabolism (i.e. MAO inhibitors, pressor agents, warfarin, anticonvulsants, phenylbutazone, or tricyclic antidepressants) present food allergies be smoker present alcohol intake that exceeds recommendations or alcoholism present current addictions to opiates, cocaine or stimulants be pregnant or planning to become pregnant over the course of the study be peri- or post-menopausal have had surgically induced menopause