Elderberry extract is often used for immune stimulation and influenza, though clinical evidence regarding its specific modulation of the immune response in older adults remains limited. Research indicates that elderberry extract can exert immunomodulatory effects, such as the upregulation of specific cytokines like IL-6 and IL-10 in human peripheral blood mononuclear cells. Additionally, elderberry extracts have been shown to protect cells against oxidative stress and lipid peroxidation in laboratory settings. Regarding dosage, one study estimated a minimum anthocyanin dose of 3.5 grams per day for influenza, though it noted that some commercial products are inappropriate for clinical use and that further clinical studies are required to adapt doses for specific symptoms. While elderberry is generally considered safe when cooked, the bark, leaves, and roots contain compounds that can release cyanide and are potentially toxic. There is currently no data regarding the safety or efficacy of elderberry in nursing mothers or infants, and no recommendations exist for medicinal doses during breastfeeding. Furthermore, dietary supplements are not subject to the same pre-marketing approval as drugs, meaning there can be significant variability between labeled and actual ingredients. | Finding | Study Design | Population | Outcome | Source | Year | | :--- | :--- | :--- | :--- | :--- | :--- | | Upregulation of IL-6 and IL-10 | In vitro / Ex vivo | Human THP-1 and PBMC | Immunomodulatory effect | | 2024 | | Protection against oxidative stress | In vitro | Caco-2 and HepG2 cells | Reduced oxidative damage | | 2022 | | Anthocyanin dosage estimation | Analytical study | Commercial supplements | 3.5g/day for influenza | | 2015 | *Note: The studies provided are primarily in vitro or analytical in nature. Clinical trials are necessary to confirm effectiveness in human populations, including older adults.*

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