GDF15 and Glucose intolerance: Consistent with the data from the chow‐fed mice, the Gdf15‐Hi strain fed with a HFD developed more severe glucose intolerance (Figure 3i) without any changes in food intake (Figure S6f) compared with the Gdf15‐Lo strain, but the Gdf15‐Hi group also showed a similar RER compared with the Gdf15‐Lo group (Figure 3j,k).