Notably, significant differences were observed in the ApoJ levels between participants with and without sarcopenia [81.1 (69.9–94.1) μg/ml in the sarcopenia group vs. 66.9 (62.5–71.6) μg/ml in the no sarcopenia group, p=0.022] and severe sarcopenia [84.1 (68.9–102.6) μg/ml in the severe sarcopenia group vs. 67.7 (63.4–72.3) μg/ml in the non-severe sarcopenia group, p=0.044]. Here, CLU is linked to sarcopenia.