Cinnamon may disrupt how the body processes medications
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A recent study published in the journal Food Chemistry: Molecular Sciences suggests that cinnamon, which is commonly used as a spice and dietary supplement, may interact with certain prescription medications. People should be cautious because cinnamon could affect the metabolism of prescription drugs, leading to unexpected interactions. The authors advise those taking regular medications to consult their healthcare provider before using cinnamon supplements and warn against overconsumption of it, especially in individuals with existing health conditions.
Source
Husain, Islam & Gurley, Bill & Kothapalli, Hari Babu & Wang, Yan-Hong & Della Vedova, Larissa & Chittiboyina, Amar & Khan, Ikhlas & Khan, Shabana. (2024). Evaluation of bioaccessibility, metabolic clearance and interaction with xenobiotic receptors (PXR and AhR) of cinnamaldehyde. Food Chemistry: Molecular Sciences. 10. 100237. 10.1016/j.fochms.2024.100237.
Additional Reading
https://www.cnn.com/2025/05/08/health/cinnamon-interactions-medications-wellness
https://www.washingtonpost.com/health/2025/05/04/cinnamon-overconsumption-drug-interactions-effects/