Brown adipose tissue is associated with systemic concentrations of peptides secreted from the gastrointestinal system and involved in appetite regulation.
Chondronikola M, Porter C, Malagaris I, Nella AA, Sidossis LS. Brown adipose tissue is associated with systemic concentrations of peptides secreted from the gastrointestinal system and involved in appetite regulation. Eur J Endocrinol. 2017 Jul; 177(1):33-40.