The aim of this study is to evaluate whether supplementation with resistant starch improves biomarkers associated with antioxidant status and insulin resistance in subjects with overweight and obesity.

Inclusion Criteria:

• Overweight and obese adults
• Age: 20-50 years

Exclusion Criteria:

• weight loss or gain (more than10%) over the past 6 months, or weight loss (more than 5%) over the past 1 month
• pregnancy, lactation or menopause
• History of acute disease or clinical evidence of cancer, acute or chronic inflammatory diseases, cardiovascular disease, renal disease, liver disease, thyroid or endocrine disease
• Gastrointestinal disease of which ingredients found in the study products have adverse effects on that
• Use of antihypertensive, lipid lowering or glucose lowering medications
• Taking antioxidant, vitamin, and/or mineral supplements
• smoking