Clinical Research Directory

Inclusion Criteria: * Adults aged 65-99 years * Able to travel to Brigham and Women's Hospital for 4 clinic visits Exclusion Criteria: * Known allergies to blueberries * Unable to abstain from blueberry consumption during the study period * Inability to provide informed consent * Planned major surgery during study period or recent major surgery up to 3 months before recruitment * Organ transplant * Plan to move out of greater Boston area during the study period * Diagnosis of dementia, severe cognitive decline, end-stage renal disease, substance abuse, insulin-dependent diabetes mellitus, major cancer excluding non-melanoma skin cancer, and schizophrenia.