American elder (Sambucus canadensis) is a shrub native to North America. Its dark purple berries and white flowers appear in most supplements.
People take elderberry to back up the immune system, especially during cold and flu season. Evidence points to a shorter span and lighter severity of upper respiratory complaints.
You can find syrups, gummies, capsules, and tinctures. Always cook or process the berries first to neutralize cyanogenic glycosides. Raw berries can trigger cyanide poisoning.
Short-term use at recommended amounts is typically fine, but safety during pregnancy or breastfeeding remains unclear. Anyone with an autoimmune condition or taking immunosuppressants should check with a doctor before using it.