The Effects of Strawberry Supplementation on Memory and Gait Among Over-weight Older Adults

Inclusion Criteria: * Between the ages of 55 and 75 years * Body mass index (BMI) between 30-40 * Hemoglobin A1C level between 5.7 and 6.4% * Height between 60 and 74 inches tall * Adequate visual acuity or corrected visual acuity to read and perform computer tasks * Fluency in spoken and written English * Ability to walk independently for 20 minutes as per self-report. * Women must be postmenopausal (absence of menstruation for a minimum of 12-months or bilateral oophorectomy) * Willing to abstain from recreational drug use Exclusion Criteria: * Vegetarian or vegan * Cognitive impairment, memory loss, or neurologic/psychological disorder that interfere with activities of daily living * Muscle or mobility deficit that would interfere with walking independent for 20 minutes * Chronic conditions associated with increased risk of falls or falls within the last year that were not precipitated by unusual circumstances (e.g. slipping on ice, being pushed) * Gastrointestinal diseases, conditions, or medications influencing gastrointestinal absorption * Use of medications or dietary supplements known or suspected to influence study outcomes * Mini Mental State Exam (MMSE) score of less than 24 at screening * Diabetes mellitus diagnosis or fasting glucose \>= 126 mg/dL or taking diabetes medication * Liver dysfunction, history of cirrhosis, or elevated SGPT, SGOT, or total bilirubin * Kidney disease as indicated by serum creatinine \> 1.5 mg/dL at screening * Uncontrolled blood pressure * Cardiac or pulmonary conditions that limit ambulation or results in dyspnea with ambulation * Allergy to strawberry or ingredients in the placebo. * Ethanol use above 2 servings/day of beer (12-ounces), wine (5 ounces) or liquor (1.5 ounces), or binge-drinking * Recent inflammatory diseases (for example: rheumatoid arthritis, lupus) * Cigarette smoking, use of nicotine replacement products, or smoking of marijuana/consumption of edibles in past 3 months or during the course of the study * History of stomach or bowel resection (other than appendectomy), gastric bypass or other bariatric weight loss procedure * Cancer of any type (except for non-melanoma skin) in past 3 yrs or actively using cancer chemotherapeutic agents * Clotting/bleeding disorders or ongoing anticoagulant use * Bilateral mastectomy with nodal dissection * No social security number (unable to pay stipend) * Blood biochemistries outside of normal range * Prior participation in a study involving berry supplementation at our institution