We also noted that intestinal Bmal1 deficiency was associated with despair‐like behaviors (based on forced swimming and tail suspension tests) but did not affect euphoria (assessed by novelty‐suppressed feeding test), anxiety (assessed by elevated plus maze and open filed tests) and social activity (assessed by three‐chamber social test) (Figure S2A–F, Supporting Information). This evidence concerns the gene BMAL1 and Anxiety.