Strong evidenceherb
Elderberry for Frequent Colds
Anthocyanins stimulate cytokine production and inhibit viral neuraminidase, preventing viral entry into host cells.
How strong is the research?
Strong evidence
Based on a meta-analysis of multiple studies — the highest level of research evidence.
Research source
SourceHawkins J et al. · BMC Complement Med Ther 2019How much to take
300–600 mg
Start at first symptoms. Standardized to anthocyanins. Safe for acute use.