GERD and Dizziness: Not a Recognized Association
Dizziness is not listed among the established extraesophageal manifestations of GERD according to current clinical guidelines. The most recent 2023 AGA Clinical Practice Update on extraesophageal GERD provides a comprehensive list of possible manifestations, which includes cough, laryngeal hoarseness, dysphonia, pulmonary fibrosis, asthma, dental erosions/caries, sinus disease, ear disease, post-nasal drip, and throat clearing—but notably excludes dizziness 1.
The Vertigo Connection: Weak Evidence
While one 2015 observational study suggested an association between peripheral vertigo (not dizziness per se) and GERD 2, this represents low-quality evidence that has not been incorporated into clinical guidelines. The proposed mechanism involved gastric acid irritating the middle ear via the Eustachian tube, but this remains speculative and unvalidated.
Key distinction: Vertigo (a spinning sensation) differs from dizziness (lightheadedness, unsteadiness). If your patient reports true vertigo, consider alternative diagnoses including vestibular disorders, which are far more likely culprits.
Clinical Approach to This Patient
Given that dizziness is not a recognized GERD manifestation:
- Investigate other causes of dizziness (cardiovascular, neurological, medication-related, vestibular)
- Do not attribute dizziness to GERD without excluding more common etiologies
- The 2023 guidelines emphasize that EER conditions are often multifactorial and require ruling out non-GI causes 1
Herbal Products and Constipation: A Plausible Cause
Multiple herbal products can indeed cause constipation, making them a likely contributor to your patient's symptoms. However, the specific herbs matter significantly.
Evidence on Herbs for Constipation
The 2025 dietary management guidelines for chronic constipation 3 note that:
- Chinese herbal supplements are mentioned in European guidelines, though with limited evidence
- Most herbal products lack robust evidence for constipation treatment
- Some herbs may actually worsen constipation depending on their composition
Conversely, certain herbal preparations have shown benefit in GERD management 4, 5, with Pinelliae Tuber, Zingiberis Rhizoma Recens, and Poria Sclerotium being commonly prescribed 4. However, these studies do not address constipation as a side effect.
The Psyllium Exception
Psyllium seed represents a notable exception—it is both evidence-based for constipation relief 3 and has demonstrated efficacy in GERD management 6. A 2018 trial showed psyllium improved GERD symptoms with lower recurrence rates (24.1%) compared to omeprazole (69.8%) in patients with functional constipation 6.
Clinical Recommendation
Review the specific herbal products your patient is taking:
- Many herbs lack standardization and may contain constipating ingredients
- If the patient is taking 10+ different herbal products, polypharmacy itself increases the risk of adverse effects
- Consider replacing multiple herbs with psyllium seed alone, which addresses both GERD and constipation with strong evidence 6
- The 2025 guidelines support psyllium as one of the few evidence-based dietary interventions for chronic constipation 3
Common Pitfall
Do not assume all "natural" or herbal products are safe or beneficial. The lack of regulation and standardization means many herbal preparations may contain ingredients that worsen constipation. The evidence for most herbal GERD treatments remains limited to small studies 5, while constipation side effects are poorly documented in the literature.