is glp-1 fda approved of GLP-1RAs for the treatment of type 2 diabetes. US Food FDA Approves Oral Semaglutide as
Description
Choose GLP-1 Friendly Foods: Some foods naturally support GLP-1 production

In humans, though, it is less settled than it first appears, and knowing exactly where the evidence ends is the useful part

The upshot

Tan says

Your assessment typically includes: A review of your medical history, including any existing conditions, medications you are taking, or allergies

Exendin-4 offered a way around that problem
