Which is not produced enteroendocrinally
Enteroendocrinal cells are the hormone secreting cells present in the glands or mucosa of the GIT particularly stomach & intestine. The enteroendocrinal cells present in gastric glands are

G cells- secrete gastrin
Enterochromaffin (EC) cells- secrete serotonin
Enterochromaffin like (ECL) cells- secrete histamine
Intrinsic factor
Secretin
Motilin
GIP