They cannot claim to treat, cure, or prevent diseases, but they can make "structure/function" claims like "supports metabolism" or "promotes healthy appetite." These vague claims allow products like Peaka GLP-1 to imply pharmaceutical-level benefits without providing pharmaceutical-level evidence
The structure and characterization of human cytochrome P450 8B1 supports future drug design for nonalcoholic fatty liver disease and diabetes
Sloop KW, Cao JX, Siesky AM et al (2004) Hepatic and glucagon-like peptide-1-mediated reversal of diabetes by glucagon receptor antisense oligonucleotide inhibitors
25 Ala substitutions in positions 10 and 11 of GIP had little negative effect on insulinotropic activity while position 12 and 14 mutations had a greater negative effect
This drug may cause side effects, including nausea/vomiting, diarrhea, constipation, abdominal pain, dyspepsia, injection site reactions, fatigue, hypersensitivity reactions, gas, hair loss, GERD, abdominal distenision, dizziness and low blood pressure