Impact of heat‐killed 
Using PCA, we decomposed the data of physical features (BW, BMI, muscle weight, fat mass, grip strength [right and left hands], and endurance time) of 30 subjects into two factors that explained 67.7% of the variance. Principal component 1 (PC1) was heavily loaded with grip strength (right hand) and endurance time and negatively loaded with muscle weight, BW, BMI, and fat mass. Principal component 2 (PC2) was heavily loaded with grip strength (both right and left hands), muscle weight, and endurance time and negatively loaded with fat mass. The subjects in the TWK10‐HK group after administration were strongly influenced by grip strength (right and left hands), muscle weight, and endurance time. The subjects in the TWK10‐HK group after administration were clearly differentiated from those before administration (Figure Principal component analysis (PCA) of 30 healthy adults. The data of physical features (BW, BMI, muscle weight, fat mass, grip strength [right and left hands], and endurance time) of 30 subjects were subjected to PCA, and the first two principal components, PC1 and PC2 were plotted. The seven loadings of variables are indicated by arrows together with their variable names.