Dietary Exchanges With Avocado and Mango in Pre-diabetes

Inclusion Criteria: * Men or women, age 25-70 year- Fasting blood glucose concentration between 100 mg/dL and 125 mg/dL at screening visit * Blood pressure 120-160 mmHg systolic or 80-100 mm/Hg diastolic at screening visit * Nonsmokers (past smokers can be allowed if they have abstinence for minimum of 12 months) * Judged to be in good health on the basis of the medical history (i.e., no clinical evidence of cardiovascular, metabolic, respiratory, renal, gastrointestinal or hepatic disease * Not taking any medications that would interfere with outcomes of the study, (e.g., lipid lowering medications, anti-inflammatory drugs, dietary supplements, etc.) * Able to provide informed consent * Able to comply and perform the procedures requested by the protocol (follow the dietary plans, come to scheduled visits, record food intake in a diary, complete questionnaires, provide blood samples and complete other tests (eye and brain/cognitive function) * Able to maintain usual physical activity pattern * Able to abstain from alcohol consumption and avoid vigorous physical activity for 24 hours prior to and during study visit Exclusion Criteria: * Men and women who have blood pressure \>160 mmHg (systolic)/100 mmHg (diastolic) at screening visit * Men and women who have fasting blood glucose concentration \<100 or \>125 mg/dL at screening visit * Abnormal Thyroid-stimulating Hormone (TSH) at screening visit * Men and women with diabetes * History of cardiovascular event, respiratory, …