This study is a randomized, double-blind, placebo-controlled clinical trial designed to evaluate the effects of astragaloside supplementation on joint discomfort in healthy adults. The primary goal is to determine if daily intake of astragaloside can improve knee joint function and reduce discomfort over a 12-week period. Participants will be randomly assigned to receive either an astragaloside capsule or a placebo capsule once daily. Aim to see if those taking astragaloside experience better mobility and fewer joint-related symptoms compared to those in the placebo group.