A research review of human and relevant scientific studies on Elettaria cardamomum.
Last reviewed: August 2026
🔬 Research Summary
- Blood pressure & cardiovascular markers: Randomized trials and meta-analyses have investigated cardamom supplementation in people with elevated blood pressure or metabolic risk. Some analyses report reductions in blood pressure, but the studies use different doses and preparations.
- Glucose & metabolic health: Clinical studies have examined fasting glucose, insulin sensitivity, lipids and metabolic-syndrome markers. Findings are promising in some trials but not uniform.
- Inflammation & oxidative stress: Human studies have measured inflammatory and oxidative-stress biomarkers, with some favorable findings. These outcomes are generally secondary laboratory markers rather than direct clinical endpoints.
- Digestive research: Cardamom is traditionally associated with digestion, but robust human trials specifically testing ordinary cardamom tea for digestive outcomes are 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.
Blood pressure & cardiovascular markers
What researchers found
Randomized trials and meta-analyses have investigated cardamom supplementation in people with elevated blood pressure or metabolic risk. Some analyses report reductions in blood pressure, but the studies use different doses and preparations.
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.
Glucose & metabolic health
What researchers found
Clinical studies have examined fasting glucose, insulin sensitivity, lipids and metabolic-syndrome markers. Findings are promising in some trials but not uniform.
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.
Inflammation & oxidative stress
What researchers found
Human studies have measured inflammatory and oxidative-stress biomarkers, with some favorable findings. These outcomes are generally secondary laboratory markers rather than direct clinical endpoints.
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.
Digestive research
What researchers found
Cardamom is traditionally associated with digestion, but robust human trials specifically testing ordinary cardamom tea for digestive outcomes are 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
Cardamom has a meaningful human research base, particularly around cardiometabolic markers, but much of it involves powdered cardamom or supplements rather than a standardized tea infusion. The evidence is therefore interesting but not yet uniform.
References
- Alam MA, et al. The effect of green cardamom on blood pressure and inflammatory markers among patients with metabolic syndrome and related disorders: a systematic review and meta-analysis of randomized clinical trials. Phytother Res. 2022. PMID: 36181264. doi:10.1002/ptr.7648.
- Effects of cardamom consumption on inflammation and blood pressure in adults: a systematic review and meta-analysis of randomized clinical trials. 2024. PMID: 38268891.
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.
