Clinical Research Directory

Inclusion Criteria: * Pre-frail according to Fried's phenotype * Age 65 to 85 * Speak English as primary language and able to read and write in English * Stable medication for ≥ 30 days * Not already taking whey protein over the past 30 days Exclusion Criteria: * Acute or chronic kidney disease * Recent major health concerns * Insulin-requiring diabetes * Cancer requiring chemotherapy or radiation within the past 5 years * Cardiac event (i.e., MI, etc.) in the past year * Dementia or neurodegenerative disease * Clinical trial or investigational drug or therapy participation within 30 days of the screening visit or during enrollment in the current study * MRI contraindications (pacemaker, aneurysm clips, artificial heart valves, metal fragments, foreign objects or claustrophobia) * Dairy Allergy or excluding dairy from diet for other reasons * Weight \> 350 lbs. * The presence of major psychiatric disorders within the past 3 years including depression, anxiety, and alcohol (over 3 drinks/day or a total of 18 drinks/week) or drug abuse.