HDAC8 and neoplasm: Our results demonstrated that HDAC8 was upregulated in tumor tissues compared with normal tissues (Figure S6d–f, Supporting Information), that HDAC8 expression was elevated in the high‐protein diet group compared with the normal diet group (Figure S6g–i, Supporting Information), and that increased HDAC8 levels were correlated with a poor prognosis (Figure S6j, Supporting Information).