ADF – mouse, age-associated lymphoma model (Descamps et al. 2005); DR – Caenorhabditis elegans (Lee et al. 2006); TF – mouse (Li, Wang, and Zuo 2013); mouse, wild type and Fgf21-/-# (Kawakami et al. 2022); KD – mouse (Yu et al. 2020)# 24 h one-off fast. The gene discussed is FGF21; the disease is lymphoma.