A Positron Emission Tomography (PET) Study Evaluating Brain Metabolism of a Medical Food in Alzheimer's Disease

Inclusion Criteria: * Diagnosis of probable AD (NINDS-ADRDA criteria(32)) * Age 50 - 90 (inclusive) * MMSE range: 10 to 28 * Participants may be taking medications for AD, provided that the dose of these medications has been stable for \> 90 days * Proficiency in English to be able to perform cognitive tests * A caregiver must be available to monitor and administer treatment and to accompany the subject to every clinical visit. Exclusion Criteria: * Inability for any reason to undergo PET/CT scans * Previous treatment with AC-1202 * Allergic to milk or soy * Presence of neurodegenerative disease other than AD * History of stroke or other injury that could result in cognitive impairment * Psychiatric disorder * Diabetes mellitus * Recent (\<90 days) changes to medications prescribed for cognitive reasons or with the potential to impact cognition * Irritable bowel syndrome (IBS) or other gastrointestinal conditions that could interfere with treatment compliance * Any factor deemed by the investigator to be likely to interfere with study conduction