SNAC (oral semaglutide absorption enhancer)
What a GLP-1 receptor agonist actually does: which receptors it reaches, how it slows gastric emptying, and the satiety pathway it runs through.
What is SNAC (oral semaglutide absorption enhancer)?
Sodium N-(8-[2-hydroxybenzoyl] amino) caprylate, the absorption enhancer formulated alongside oral semaglutide in Rybelsus.
It nudges gastric pH and loosens the cell membrane just enough for a peptide to cross; without it oral semaglutide absorption is effectively nil. That is the real reason for the 30-minute fasting window — food breaks the complex. ⚠ Worth asking any seller offering “oral semaglutide” what they use in its place.
GLP Watchdog writes these definitions from FDA labels and peer-reviewed PubMed literature.
Where SNAC (oral semaglutide absorption enhancer) comes up on this site
Connected terms
Other terms under Mechanism
- GLP-1 receptor
- GIP receptor
- Dual agonist
- Gastric emptying
- Food noise
- Triple agonist
- Amylin
- GLP-1 tachyphylaxis
- Non-peptide GLP-1 agonist
- A1C (glycated hemoglobin)
- MASH / MASLD
- TBWL (Total Body Weight Loss)
- C-peptide
- eGFR (estimated glomerular filtration rate)
- Visceral adipose tissue (VAT)
- AHI (apnea-hypopnea index)
Where the evidence lives
- Oral GLP-1 Q&A hub
- The full GLP-1 glossary (149 terms, 8 categories)
- Research articles — written from primary sources
- Tools and calculators
- Compare GLP-1 telehealth providers