Dietary Advanced Glycation End-products and Insulin Resistance in Overweight and Obese Humans

Inclusion Criteria: * weight stable overweight and obese (BMI ≥ 25kg/m2) non-diabetic individuals, aged 18-50 years and healthy according to medical history, blood biochemistry and physical examination. Exclusion Criteria: * Participants will be excluded if they: * are aged \<18 years or \> 50 years; * currently smoke, have high alcohol use; or a positive urine drug screening test; * have a history of: diabetes, cardiovascular and hematological disease, respiratory, gastrointestinal, endocrine, renal or central nervous system disease, psychosis or psychiatric disorder, active cancer within last 5 years. * are actively seeking to lose weight, or if their weight has changed by more than 10 kilograms in the previous 12 months. * have been taking medication within one month prior to commencing the study; * have acute inflammation (by history, physical or laboratory examination) * are on hormonal contraceptives, or pregnant (by HCG urine pregnancy screening test) or lactating * have highly unusual dietary habits or follow vegan diets (because of the difficulty in complying with the assigned diet). * have current diabetes (determined by history and/or 75g glucose OGTT) * are unable to provide informed consent