The word that restricts weight-loss ad accounts is "your."
Not the offer. Not the medication. A pronoun. Meta's rule is that your ad may not act like it knows something about the person reading it — and weight-loss copy breaks that rule almost by reflex.
An FDA letter takes months. A Meta rejection takes about an hour, and it does not come with an explanation you can use. Ads stop delivering, the account picks up a strike, and the notice says a policy was violated without telling you which sentence did it.
Two published policies cause most of it, and neither is about weight loss specifically.
Rule one: your ad cannot know who is reading it
Meta's personal attributes policy prohibits copy that asserts or implies knowledge of a reader's personal characteristics — health status, body, finances, and similar traits. The logic is about the experience of being targeted: a stranger's advertisement should not appear to know your medical situation.
This is where weight-loss copy dies, because the natural way to write it is second person. "Struggling with your weight?" is a perfectly ordinary marketing sentence and a textbook violation, since the question only makes sense if the ad believes the reader is struggling.
Every line addresses a condition the ad cannot know the reader has. The last one adds a second problem: it implies the reader's current body is undeserved.
Same offer, same audience, zero claims about the reader. Notice what survived: the credential, the location, the mechanism, the ease of the first step.
Rule two: no negative self-perception, no idealized results
Meta's personal health policy prohibits ad content that implies or attempts to generate negative self-perception in order to promote diet, weight loss or health products. In its own guidance the platform names the specific failures: images that zoom in on a condition, content that gives a person a negative view of their body, and before-and-after images used to display idealized results.
Before-and-after is the one clinics grieve over, because it is the most persuasive asset they own. It has been prohibited for years and it is not coming back. The same policy family also limits weight-loss and cosmetic-procedure advertising to audiences 18 and over.
What replaces it: the process rather than the outcome. The consultation room, the provider, the check-in cadence, the questionnaire. A photograph of the person who will actually see the patient outperforms a stock transformation collage, and it cannot be rejected.
Prescription drugs sit under a separate Meta policy and require prior written permission from the platform. For telehealth and pharmacy advertisers this is where LegitScript certification enters the picture — the certification is the credential that unlocks the permission, and it is not retroactive.
Running prescription-drug advertising before that permission is in place is not a copy problem with a rejection at the end. It is the category of behavior that gets an account disabled outright.
The mistake nobody looks for: what you named things
Policy review does not stop at the visible ad. Practitioners have reported through 2025 and 2026 that Meta also flags custom audiences and custom conversions whose names or rules imply a sensitive trait — an audience list named after a medical condition, a conversion event named after a treatment.
This is worth an audit because it is invisible from the outside. Nobody sees your audience names but you, so nobody proofreads them. A campaign structure built for internal clarity — glp1_high_intent, diabetes_lookalike — is a written record of health inference, sitting inside the ad account.
Rename them by funnel stage or source instead. You lose nothing operationally.
What to check before your next campaign goes live
- Read every headline for the second person. If a sentence contains "you," "your," or a question about the reader's condition, rewrite it about the program. This one pass removes most rejection risk.
- Pull every before-and-after, including the implied ones. A single "after" photo next to product packaging carries the same message as a split image. So does a testimonial video whose whole point is the transformation.
- Read your landing page as part of the ad. Review considers where the click goes. Compliant copy pointing at a page full of guarantees and transformation photos does not save the campaign.
- Open your audiences and conversions and read the names. Rename anything that implies a condition. Five minutes, and it removes a category of enforcement you would never diagnose from a rejection notice.
None of this makes the advertising weaker. The strongest health ads were never the ones shouting at someone about their body — they were the ones that sounded like a real clinic, run by a real provider, that a reasonable person would trust with a prescription.