The document discusses several herbs that can help support immunity, including astragalus, nettle, rose hips, echinacea, elderberry, and slippery elm bark. It describes the nutrients and immune-supporting properties of each herb, and provides recommendations for how to integrate the herbs into teas or foods. While there is no conclusive evidence that herbs can prevent or treat illness, some research suggests they may shorten the duration of cold symptoms. The document concludes by providing resources for additional information on herbal remedies and immunity.