This study is a randomized double blind, placebo controlled clinical trial. The purpose is to evaluate the between-groups difference in incidence and duration of upper respiratory events and severity of upper respiratory symptoms while supplementing with ElderCraft® elderberry extract.~After attending an orientation session, participants will provide informed consent and be randomized on a 1:1 basis into an intervention group or a placebo group. Each group will consume two capsules daily for 13 weeks. Each intervention capsule contains 300 mg of European black elderberry extract, standardized to 15% anthocyanins.
The purpose of this study is to confirm and quantify the effects of ElderCraft® elderberry extract on immune health.