How do I separate the drug effect from my own expectations?

2026-10-07 2226 views 3 posts

i’m the person in my friend group who asks for the actual paper before buying the hype. I’ve been logging appetite, after-meal fullness, and the 4 p.m. snack urge on a 1–5 scale since starting a prescribed GLP-1, and my first 60-ish days look suspiciously tidy: appetite scores dropped before the scale moved at all.

That makes me wonder how much is the medication and how much is finally having a label, weekly check-ins, and a food log. I’m not trying to dismiss the drug—my clinician says the timeline is plausible—but I’d like a way to think about placebo and expectation that isn’t just vibes.

If you’ve read anything solid on placebo effects in GLP-1 trials, or tracked something that helped you separate signal from story, what was it? I’m especially curious which outcomes tend to move early and which lag.

Measurement reactivity is a real confounder. Logging the 4 p.m. urge on a 1–5 scale can itself nudge behavior, especially if you suspect the drug is working. Did you collect a pre-treatment baseline, or is day 1 your comparator?

I’d add two columns: sleep hours and protein at lunch. In my own logs, afternoon urge tracked almost 1:1 with short sleep and low-protein lunch; the med effect was the residual after those were stable. Also, weight lag is expected—appetite changes can precede fat loss by weeks due to water/glycogen shifts.

Try having someone else randomize when you score, or at least score before checking previous days. That reduces expectancy bias without changing anything clinical.

I see it differently. Logging didn’t change my appetite. My night shifts did.

Tag each score with shift type and sleep hours. Then compare like with like: nights vs off, 6+ hrs sleep vs under 5. My 4 p.m. urge was mostly a sleep-debt alarm. Scale lagged way behind.

Sharp question: are your tidy first 60 days all similar shifts? If not, you may be measuring schedule, not the drug or your head.