Fuente: WIPO "meat" Provided herein are cultivated animal cells that are adapted to grow in growth medium that contains low-insulin or no exogenously provided insulin. Provided herein are cultivated animal cells that are adapted to grow in growth medium that contains low-transferrin or no exogenously provided transferrin. Provided herein are methods of cultivating animal cells in growth medium that contains low-insulin or no exogenously provided insulin. Provided herein are methods of cultivating animal cell in growth medium that contains low-transferrin or no exogenously provided transferrin. Also provided are food products made from cultivated animal cells.