400mg has a rich history of use in Chinese and Asian cultures. The herb was mentioned in the Divine Husbandman’s Classic of the Materia Medica, written anonymously during the first century AD. (14) It is traditionally valued for support of healthy immune function (15) Our Astragalus is a 10:1 extract.
14. Chin Med. 2015 Jul 3;10:17
15. Naunyn Schmiedebergs Arch Pharmacol. 2015 Sep;388(9):965-72