Cinnamon dietary supplements might pose well being dangers by interfering with prescription drugs.
- Cinnamaldehyde in cinnamon might activate drug-clearing receptors within the physique
- Overuse of dietary supplements can decrease the effectiveness of prescribed drugs
- Cassia cinnamon, generally bought in shops, has greater ranges of coumarin
Cinnamon is greater than only a beloved spice sprinkled on lattes and oatmeal. Lengthy praised for its position in
Analysis of bioaccessibility, metabolic clearance and interplay with xenobiotic receptors (PXR and AhR) of cinnamaldehyde
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Based on a 2024 examine by the College of Mississippi’s Nationwide Middle for Pure Merchandise Analysis, cinnamaldehyde—the primary energetic compound in cinnamon—might intervene with drug metabolism by activating receptors that clear drugs from the physique too shortly.
What Is Cinnamaldehyde?
Cinnamaldehyde is the compound chargeable for cinnamon’s distinctive taste and aroma. It additionally contributes to cinnamon’s antimicrobial, anti-inflammatory, and glucose-lowering properties. These advantages have earned cinnamon a revered place in conventional medication and fashionable wellness circles.
However scientists are actually paying nearer consideration to how cinnamaldehyde behaves contained in the physique—particularly when consumed in excessive concentrations through dietary supplements or important oils.
100% Bioaccessible—However That’s Not At all times a Good Factor
A key discovering from the examine was that cinnamaldehyde is 100% bioaccessible, which means the physique can totally take up it in each fasted and fed digestive states. Whereas this excessive absorption fee sounds promising, it additionally means cinnamaldehyde can immediately work together with metabolic pathways—particularly these concerned in breaking down medicine.
In liver cell fashions, cinnamaldehyde and cinnamon oil each inhibited enzymes like CYP2C9 and CYP1A2, that are important for processing many prescribed drugs. Additionally they activated xenobiotic receptors corresponding to PXR and AhR, which regulate the pace at which the physique clears international substances—together with drugs.
This might imply your medication leaves your system too shortly to be efficient.
The Hidden Dangers of Over-Supplementation
Whereas including a pinch of cinnamon to your espresso isn’t trigger for concern, the identical can’t be mentioned for high-dose cinnamon dietary supplements or important oils.
“Overconsumption of dietary supplements might result in speedy clearance of prescription medication, making it much less efficient,” the researchers warning.
That is particularly worrisome for people with continual situations like diabetes, coronary heart illness, or despair, who typically depend on long-term medicine use. The danger is even higher when these people self-prescribe natural dietary supplements with out informing their healthcare suppliers.
Not All Cinnamon Is Created Equal
One other layer to this story lies in the kind of cinnamon you devour. Most grocery-store cinnamon is Cassia cinnamon, which incorporates excessive ranges of coumarin, a pure blood thinner that may be hazardous when taken in extra—notably for these already on anticoagulant medicine.
Then again, Ceylon cinnamon, typically labeled as “true cinnamon,” incorporates far decrease coumarin ranges and poses much less threat.
Nonetheless, whatever the sort, massive doses—particularly in complement kind—can create situations for herb-drug interactions which will go unnoticed till a prescription drug begins failing to work.

A Phrase of Warning for Complement Customers
As the recognition of pure treatments grows, specialists urge warning.
“Our greatest recommendation is to speak to a healthcare supplier earlier than utilizing any dietary supplements together with prescription medication,” the report advises.
And that recommendation doesn’t simply apply to cinnamon. Many natural dietary supplements can affect how your physique handles drugs. With out correct steering, what begins as a well-intentioned well being enhance might inadvertently disrupt your therapy plan.
Cinnamon continues to supply promising well being advantages, notably in blood sugar management and coronary heart well being. Nonetheless, excessive doses—particularly in concentrated complement kind—might intervene with how your physique processes drugs. Till extra scientific research present clearer solutions, it’s greatest to get pleasure from cinnamon carefully and seek the advice of your physician earlier than including dietary supplements to your routine.
Nature can heal, however when mixed with medication, it should be dealt with with care—your well being will depend on the concord between the 2.
Reference:
- Analysis of bioaccessibility, metabolic clearance and interplay with xenobiotic receptors (PXR and AhR) of cinnamaldehyde
– (https://www.sciencedirect.com/science/article/pii/S2666566224000443?)
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