Emotional Blunting Is the Only One of Our 15 Tracked GLP-1 Effects With No Corpus-Derived Rate — Here's Exactly Why

"Ozempic personality" is one of the most widely covered GLP-1 side effects in the press — our own corpus holds 20 distinct news-typed rows naming it: 18 articles from named outlets including the Washington Post, the Guardian, the BBC, MedPage Today, CNBC, TODAY.com and Psychology Today, plus two X posts a news search swept in. So it would be reasonable to assume we publish a rate for it. We don't. Of the 15 side effects we track, emotional blunting is the only one with zero corpus-derived clinical rate — and the only one with zero mentions in our community-reporting track too. Both tracks read genuinely empty, not thin, and the reason is specific and checkable rather than a shrug.

What's actually in the corpus for this effect

Excluding ten 2026-04-12 seed placeholder rows that every published figure already screens out by design (three carry the withdrawn static `clinicalRates` table restated as if extracted, and mistakenly cite a real CNS-receptor review that itself states no incidence number; seven more are self-referential, pointing at our own site rather than an external source), the corpus holds 36 real points for emotional blunting.

Three of those seven self-referential rows are branded as a New York Times "Ozempic Changed My Personality" investigation, and that is exactly why the New York Times is not in the outlet list above: the brand is on a placeholder row typed in on 12 April 2026, with our own site as its URL. We hold no New York Times article on this effect. A seed row is not a source, however famous the name on it — which is the whole reason this piece counts what it counts. What is left after the screen:

Compare that to our other 14 tracked effects, all of which clear at least one of the two tracks:

† Rows whose evidence is wholly or mostly serious-adverse-event rates from trial registries' SAE tables — a floor on all-cause incidence, not incidence itself. Pancreatitis: 2 of its 3 studies; gallstones: 3 of its 7. The API carries the same disclosure on every one of these figures (`rateBase.clinical.rateKindNote`), and the composition piece sets out why.

Read the middle column against the last one and pancreatitis is the interesting near-miss: it also has zero community mentions, but a real clinical rate from 3 registry studies — a trial can report a diagnosed pancreatitis case even though nobody posts about it on Reddit. Emotional blunting is the only row where both columns read zero at once, and that combination is what makes it structurally different from "thin evidence" — hair loss and injection-site reaction are thin (2-3 sources) but not absent.

Why the clinical track is empty

A side effect gets a corpus-derived rate when a trial's adverse-event table, a regulatory filing, or another structured clinical source states a number for it. Emotional blunting — or "apathy," "anhedonia," "reduced reward response," any term a MedDRA-coded table might use for it — does not appear in the adverse-event tables of the GLP-1 trials and filings our pipeline has collected. That is not the same claim as "GLP-1s don't cause it" or "nobody has studied it" — it's narrower: the specific structured sources in our corpus, as collected today, contain no coded rate for it. The CNS-receptor expression review our own withdrawn seed row mis-cited is real science describing a plausible mechanism (GLP-1 receptors sit in dopamine-linked reward circuitry) — it just doesn't report an incidence percentage, which is why it was never eligible to become one.

Why the community track is empty — and it's not for lack of people describing it

This is the more interesting gap, because the raw material exists: 16 real, on-topic-sounding Reddit posts sit in our corpus already. Our reporting-frequency figure only counts a post if it comes from one of the 16 subreddits our collector is configured to read — real GLP-1 patient communities like r/Ozempic, r/Mounjaro and r/Zepbound. Every one of the 16 emotional-blunting posts in our corpus comes from somewhere else — mostly mental-health and psychiatric-medication communities a generic "emotional blunting" search term also surfaces: r/lexapro (twice), r/schizoaffective, r/BipolarReddit, r/depression_help, r/mentalhealth, r/BusparOnline, r/AdultDepression, r/TrueOffMyChest, r/offmychest, r/Vent, r/BrainHackGuide, r/sillyboyclub, r/Gastroenterology and r/Anemic — none of which name GLP-1s at all in the post we hold. Emotional blunting is a well-documented side effect of SSRIs and antipsychotics independent of any GLP-1 connection, and that is almost certainly what most of these 16 posts are actually describing.

One of the 16, from r/mounjarouk, is different in kind — a real GLP-1 discussion community our collector's list happens to omit by name. Whether to add it — and the eight other unambiguous GLP-1 communities a corpus-wide sweep found the same day this piece was written, nine in all, holding 15 reports between them across every effect we track — is an open, founder-facing decision, not yet resolved; admitting it would move this effect from 0 to at most 1 community mention, not manufacture a clinical rate. We're naming the gap rather than quietly patching around it.

What it would take to publish a number here

Two independent things, either of which alone would move a track: a GLP-1 trial or regulatory filing that codes and reports an emotional-blunting-type term in its adverse-event table (moves the clinical track), or a real post from one of our 16 tracked GLP-1 subreddits describing it (moves the community track, even at n=1). Until either happens, the honest publication is what the site already shows: our own effect page marks emotional blunting's clinical rate withdrawn (`clinicalRatesWithdrawn: true`) rather than showing a placeholder number, and its description already says "not well-studied in clinical trials" — this piece is the arithmetic behind that sentence, not a new claim.

Reproduce it

Every count above was computed on 21 September 2026 against the same repo-committed corpus the site's own functions read (`classifyRatePoint` and `buildReportingFrequency` in `src/lib/rate-base.ts`), independently re-derived rather than read from a summary, and cross-checked point-by-point against `data/side-effects-db.json` to separate the 10 excluded seed rows from the 36 real ones by hand. This was computed from the repo file, which can lag production KV by up to a day — read the live figures for any effect, including emotional blunting, at `GET /api/data?q=effect&id=`.

The full dataset — 15 effects, both tracks, every source with its URL, CC BY 4.0 — is at magistra.health/en/data-api.