“"A bizarre medical case showed that Diet Coke can have a very unusual use in medicine. A woman taking a GLP-1 medication developed a gastric bezoar, a hardened mass of undigested food in the stomach. Doctors treated her with 1.5 litres of Diet Coke over two days, and follow-up examination showed that the mass had dissolved." (Intake summary rendered it as "1.5 liters of Diet Coke a day, with the mass gone within two days." Post images read: BEFORE / AFTER 2 DAYS.)”

• Where would you place this on a scale from false to accurate, and why?
• What would you need to see to be sure? Who would have the original evidence?
• Which words in the claim are doing the most work?

This one is largely accurate. A real medical case, reported by Live Science and NewsNation in July 2026, describes a 36-year-old Massachusetts woman on a GLP-1 weight loss drug who developed a gastric bezoar, a hardened mass of undigested food. She drank roughly 1.5 liters of Diet Coke, and a follow-up endoscopy found the mass had dissolved. Using cola to dissolve these masses is a recognized medical technique, supported by a published systematic review that found it fully dissolves such masses in about half of cases. Two details in the viral version are off: the cola was a single scaled-down dose, not 1.5 liters a day, and doctors also stopped her GLP-1 medication and gave her another prescription, so soda was not the only treatment. This is also a single patient case, and the doctors themselves wrote that they do not understand why cola works. The before-and-after images in the post could not be verified as coming from this case, and the original journal publication was not directly located.

• A real, media-documented clinical case exists, published as a case report and covered by Live Science and NewsNation in July 2026.
• The patient was taking a GLP-1 receptor agonist and developed a gastric bezoar.
• Diet Coke was the dissolution agent used, in an approximate volume of 1.5 liters.
• A follow-up endoscopy found the bezoar had dissolved.
• The approximate two-day timeframe is consistent with reporting: symptom relief the day after ingestion, with dissolution confirmed on follow-up endoscopy.
• The post's closing qualifier, that cola has been used in medically supervised bezoar treatments, is accurate and supported by a published systematic review.
• The MLA citation points to a real NewsNation article, though the date is off by about one day from the publication date indexed.

• Dose and duration framing (omitted qualifier): the intake wording "1.5 liters a day" and the post's "over two days" both misdescribe the regimen. Reporting indicates a single scaled-down administration of about 1.5 liters, which was roughly half the standard 3-liters-in-12-hours protocol. This detail matters because it is the opposite of a daily maintenance regimen.
• Treatment was not cola alone (omitted qualifier): secondary coverage indicates doctors also took the patient off the GLP-1 medication and gave her a prescription. Presenting Diet Coke as the sole curative intervention overstates its isolated role.
• Single case presented as a general property (temporal and scope overreach): "Diet Coke can have a very unusual use in medicine" is loose but defensible given the systematic review; however, the before/after visual format implies reproducible, predictable efficacy that a single case cannot demonstrate. Even the systematic review found complete dissolution with cola alone in only about half of cases.
• Mechanism implied but unknown: the framing suggests Diet Coke reliably "dissolves" masses, while the treating clinicians stated the mechanism is not understood.
• Causal attribution to the GLP-1 drug is a clinical inference, not an established cause. Headlines used "likely caused" and the post drops that hedge.
• Brand framing: the on-image text "Diet Coke - NO SUGAR NO CALORIES" reads as product marketing attached to a medical case. Diet cola was chosen here because the patient had diabetes, not because sugar-free formulations are therapeutically superior.

• The original published case report (journal, authors, DOI, exact wording of the imaging and endoscopy findings) was not retrieved. Search quota was exhausted after the sources listed above.
• Whether the "BEFORE" and "AFTER 2 DAYS" images in the post are the actual endoscopic or imaging images from this case, or unrelated stock or borrowed images. This could not be verified.
• The exact interval between cola administration and the confirmatory follow-up endoscopy.
• The bezoar's composition, its precise measured size, and whether any residual material remained.
• What additional prescription the patient received and what role it played.
• Whether the MLA date of 22 July 2026 reflects an update, a syndication, or a transcription error.

• Ladas et al., "Systematic review: Coca-Cola can effectively dissolve gastric phytobezoars as a first-line treatment," Alimentary Pharmacology & Therapeutics (2013) (primary)
  https://pubmed.ncbi.nlm.nih.gov/23252775/
• Live Science, "Diagnostic dilemma: Huge mass in woman's stomach was likely caused by Ozempic-style drug and dissolved with diet soda," July 2026 (secondary)
  https://www.livescience.com/health/diagnostic-dilemma-huge-mass-in-womans-stomach-was-likely-caused-by-ozempic-style-drug-and-dissolved-with-diet-soda
• NewsNation, "Doctors use Diet Coke to dissolve woman's rare stomach mass likely caused by of GLP-1 drug," 21 July 2026 (tertiary)
  https://www.newsnationnow.com/health/diet-coke-dissolve-stomach-mass-glp-1-patient/
• Keng et al., "A Case Report of Bezoar-Induced Small Bowel Obstruction: A Potential Surgical Complication of Semaglutide," Cureus, Dec 2025 (primary)
  https://pubmed.ncbi.nlm.nih.gov/41431486/
• Coca-Cola dissolution therapy for duodenal bezoar, case report, PubMed 2026 (primary)
  https://pubmed.ncbi.nlm.nih.gov/42130575/
• Dexerto, July 2026 (tertiary)
  https://www.dexerto.com/entertainment/womans-stomach-condition-cured-after-doctors-tell-her-to-drink-liters-of-diet-coke-3385518/
• NOT FOUND: the original published case report (journal, authors, DOI). Search quota exhausted before it could be located. (unknown)