5 phrases most often rejected in health-food ad pre-screening
Five expressions that get rejected most often during ad pre-screening, with real-world examples.
Advertising for health functional foods in Korea must pass pre-screening by the Korea Health Functional Food Association before it can run. Certain types of claims get rejected again and again — checking for them while drafting the formula and copy saves time later.
1) Claims that name or imply a disease
Directly naming a disease is an obvious rejection trigger, but wording that merely evokes a disease's characteristic symptoms is regulated too. Schedule 1 of the enforcement decree explicitly covers wording that "implies" a link to a disease even without naming it.
2) Claims that cause confusion with health functional foods
A functional food with claims (HFF) is not a certified health functional food. Advertising it as "health-functional-food level" or with drug-like language that confuses consumers gets flagged. In a 240-case review of online HFF ads, MFDS found that a large share of violations were exactly this kind of confusion.
3) Human clinical trial results cited without conditions
Stripping a trial result down to a bare claim like "weight loss" or "improvement" tends to get rejected. Screening requires stating the test conditions — subject count, duration, dosage — alongside the result; omitting them risks being judged "false or exaggerated."
4) Claims that cause confusion with a drug
Words like "treatment," "enhances effect," or names resembling traditional medicine prescriptions are prohibited outright because they risk making consumers mistake the food for a drug.
5) Published ads that differ from the screened version
Even copy that passed screening can trigger separate penalties if the detail page or thumbnail is edited afterward without re-screening. There are real administrative cases of business suspension for exactly this gap between the screened draft and what was actually posted.
- Scan every line of copy for disease/symptom-evoking words
- Keep HFF and health-functional-food wording strictly separate
- State full trial conditions whenever citing a clinical result
- Remove any drug-evoking language
- Re-confirm the published ad matches the screened draft exactly
Brand checkpoints
- Does your draft copy contain any disease- or symptom-evoking words?
- Does the wording match your actual product category (HFF vs. certified health functional food)?
- Did you keep the original conditions when citing a clinical trial?
- Does the live ad match the version that passed screening?
A rejection usually delays the entire ad launch schedule. Balanced DietLab runs ad-claim pre-review alongside formula and naming work, so high-risk wording gets filtered out before launch, not after.
