Taking the question as asked, rather than the general version of it. The OASIS programme put 50mg oral in the same territory as 2.4mg injectable — around 15% mean weight loss — but it needed a dose 20 times larger to get there because almost none of the tablet is absorbed. The dose numbers are not comparable across routes and quoting them side by side confuses people.
I switched from injectable to oral semaglutide for travel reasons and the fasting window is proving harder to hold than the injection ever was.
What I actually want to know is how much of the oral variability is the SNAC absorption window and how much is dose, because the two get conflated constantly.
I would rather have one careful answer than five confident ones.
LabKate said:The OASIS programme put 50mg oral in the same territory as 2.4mg injectable — around 15% mean weight loss — but it needed a dose 20 times larger to…
That is correct as far as it goes, and here is where it stops going. The absorption variability is real, but it partly averages out over weeks — the steady-state trough is less erratic than any single day would suggest. Where it bites is in the first fortnight, when people conclude the tablet does nothing.
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View Resultspaul_denver said:I switched from injectable to oral semaglutide for travel reasons and the fasting window is proving harder to hold than the injection ever was.
This matches mine closely enough to be worth saying so. Oral semaglutide is absorbed in the stomach with the help of SNAC, which locally raises pH and protects the peptide long enough to cross. That mechanism is fragile: bioavailability is roughly 1% and highly sensitive to gastric contents, so a mouthful of coffee genuinely changes the exposure. This is why the label wants 30 minutes and no more than half a glass of plain water.
Adding the clinical framing, because it changes how the question reads. Worth answering the question that was asked rather than the one behind it. The narrow version usually has an answer; the broad version usually does not, and answering the broad one is how a thread stops being useful.