Feru-guard (Ferulic Acid and Angelica Archangelica Extract) and General Antioxidant Capacity in Older People

Inclusion Criteria: * 65 to 89 years old * Not demented or mild cognitive impairment, defined as Clinical Dementia Rating (CDR) =0 and MMSE \>24. * Informant has direct contact with participant at least 2 days per week to verify functional status, CDR, and accompany participant to in-clinic screening visit * Sufficient English language skills to complete all testing. Exclusion Criteria: * Any dementing illness (AD, vascular dementia, normal pressure hydrocephalus, or Parkinson's disease); dementia defined by CDR ≥ 0.50, MMSE \< 25 * AD medication (e.g. acetylcholinesterase inhibitors, NMDA…