A research review of human and relevant scientific studies on Cydonia oblonga.
Last reviewed: August 2026
🔬 Research Summary
- Nausea & pregnancy: Clinical research has investigated quince preparations for nausea and vomiting in pregnancy, including randomized trials.
- Reflux & gastrointestinal symptoms: A randomized pediatric trial has compared quince syrup with standard treatment for reflux symptoms.
- Cardiometabolic research: Animal and laboratory research is substantial, while human evidence for cardiovascular outcomes is much more limited.
- Antioxidant & phytochemical research: Quince contains polyphenols and has been studied extensively in laboratory and food-composition research.
- Dried-quince tea: Direct clinical evidence for an infusion made from dried quince is very limited.
The sections below summarize the principal health areas investigated in the literature. Evidence strength is not uniform, and studies using extracts, oils, capsules or combination products are identified conceptually rather than treated as interchangeable with tea.
Nausea & pregnancy
What researchers found
Clinical research has investigated quince preparations for nausea and vomiting in pregnancy, including randomized trials.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Reflux & gastrointestinal symptoms
What researchers found
A randomized pediatric trial has compared quince syrup with standard treatment for reflux symptoms.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Cardiometabolic research
What researchers found
Animal and laboratory research is substantial, while human evidence for cardiovascular outcomes is much more limited.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Antioxidant & phytochemical research
What researchers found
Quince contains polyphenols and has been studied extensively in laboratory and food-composition research.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Dried-quince tea
What researchers found
Direct clinical evidence for an infusion made from dried quince is very limited.
What remains uncertain
Study results, doses, preparations and participant populations differ. Where the evidence is based mainly on extracts, oils, capsules, combinations, laboratory models or people with a specific condition, that limitation should be considered when interpreting the findings for a normal cup of tea.
Overall Assessment
Quince has interesting clinical and preclinical research, especially around gastrointestinal symptoms, but the evidence for dried-quince tea itself is sparse. Whole-fruit or syrup findings should not automatically be transferred to an infusion.
References
- Shamsa F, et al. Comparison of quince with vitamin B6 for treatment of nausea and vomiting in pregnancy: a randomised clinical trial. J Obstet Gynaecol. 2017. PMID: 28631509. doi:10.1080/01443615.2017.1322046.
- A comparative study of ranitidine and quince (Cydonia oblonga Mill) sauce on gastroesophageal reflux disease in pregnancy: a randomised, open-label, active-controlled clinical trial. 2018. PMID: 29553843.
- Cardiovascular Effects of Cydonia oblonga Miller (Quince). Evid Based Complement Alternat Med. 2022. PMID: 36262168.
- Note: Direct clinical evidence for a dried-quince tea infusion is limited.
Reference note: References were selected to represent the principal human clinical and systematic-review evidence discussed in this article. Where direct tea-infusion evidence is limited, the article explicitly identifies that limitation.
Publication version: August 2026
These statements have not been evaluated by Medsafe. This tea is not intended to diagnose, treat, cure, or prevent any disease. If you are pregnant, breastfeeding, or managing a health condition, check with your healthcare provider before making it a regular habit.
