FABP1 and obesity due to melanocortin 4 receptor deficiency: Overall, the LFABP−/− mice had more potentially obesity-promoting guilds including bacteria such as those from Tyzzerella, Desulfovibrionaceae, and Odoribacter, and fewer anti-obesity guilds including bacteria from Akkermansia, Lactobacillus, Lachnoclostridium, and Bifidobacterium [64,65,66,69,70,71].