Ceylon Cinnamon powder
Also known as: Ceylon cinnamon, true cinnamon, Sri Lankan cinnamon, Cinnamomum verum
Overview
Ceylon cinnamon, derived from the inner bark of the Cinnamomum verum tree native to Sri Lanka and southern India, is distinct from Cassia cinnamon due to its milder flavor and significantly lower coumarin content. Primarily utilized as a culinary spice, it is gaining recognition as a dietary supplement ingredient, particularly for its potential role in metabolic health, including glycemic control and lipid management. Its health benefits are attributed to active compounds such as cinnamaldehyde, cinnamic acid, and various polyphenols. While research on cinnamon's health effects is moderately mature, with numerous randomized controlled trials and meta-analyses, many studies do not differentiate between cinnamon species, which can complicate the direct application of findings specifically to Ceylon cinnamon. Nevertheless, systematic reviews and meta-analyses generally indicate modest benefits on blood glucose and lipid profiles, though acknowledging heterogeneity and potential publication bias in the existing literature.
Benefits
Ceylon cinnamon demonstrates several evidence-based benefits, primarily in metabolic health. Meta-analyses of randomized controlled trials indicate that cinnamon supplementation can reduce fasting plasma glucose by approximately 24.6 mg/dL and improve lipid profiles, including reductions in total cholesterol (-15.6 mg/dL), LDL cholesterol (-9.4 mg/dL), and triglycerides (-29.6 mg/dL), with a small increase in HDL cholesterol (+1.7 mg/dL). While effects on HbA1c are less consistent, these findings suggest a role in glycemic and lipid management, particularly for individuals with type 2 diabetes. Furthermore, cinnamaldehyde, a key active compound, exhibits anti-inflammatory properties in in vitro and animal studies, potentially mitigating chronic inflammation associated with metabolic diseases. Some evidence also suggests benefits for individuals with polycystic ovary syndrome (PCOS). It's important to note that while statistically significant, the clinical impact of these changes is modest, positioning Ceylon cinnamon as an adjunctive therapy rather than a standalone treatment. Benefits typically become apparent after weeks to months of consistent supplementation.
How it works
Ceylon cinnamon's health benefits stem from its bioactive compounds, primarily cinnamaldehyde and various polyphenols. These compounds modulate insulin signaling pathways, enhancing the function of insulin receptors and improving cellular glucose uptake, thereby contributing to glycemic control. The antioxidant properties of its polyphenols help reduce oxidative stress, a key factor in the development of insulin resistance and inflammation. Additionally, cinnamaldehyde is known to inhibit pro-inflammatory cytokines, which can lower systemic inflammation. The bioavailability of these constituents is moderate, with metabolism occurring in the liver. The specific form and method of ingestion can influence their absorption and efficacy within the body.
Side effects
Ceylon cinnamon is generally considered safe when consumed at typical dietary and supplemental doses. Mild gastrointestinal discomfort is a rare side effect, occurring in less than 5% of users. Uncommon side effects (1-5%) may include allergic reactions in sensitive individuals. While hepatotoxicity is a rare concern (<1%), it is predominantly associated with the high coumarin content found in Cassia cinnamon, which is present in very low amounts in Ceylon cinnamon, significantly reducing this risk. Caution is advised when combining Ceylon cinnamon with anticoagulant medications or antidiabetic drugs, as it may have additive effects. Contraindications include pregnancy, due to limited safety data, and individuals with pre-existing liver disease, where caution is recommended due to the liver's role in metabolizing its compounds. Overall, its favorable coumarin profile makes it a safer choice compared to Cassia cinnamon for regular consumption.
Dosage
For glycemic effects, a minimum effective dose of approximately 1–3 grams of Ceylon cinnamon powder per day is suggested. Clinical trials commonly utilize optimal doses ranging from 1 to 6 grams daily, often administered in divided doses with meals to enhance absorption and minimize potential gastrointestinal discomfort. While a maximum safe dose has not been definitively established, exceeding 6 grams per day may increase the risk of adverse effects. Timing supplementation with meals is generally recommended. Ceylon cinnamon is widely available in powder form, but extracts standardized for cinnamaldehyde content may offer more consistent dosing. No specific cofactors are required for its efficacy, though absorption might be slightly improved when consumed with dietary fats.
FAQs
Is Ceylon cinnamon safer than Cassia?
Yes, Ceylon cinnamon is significantly safer than Cassia cinnamon due to its much lower coumarin content, which reduces the risk of liver toxicity associated with high coumarin intake.
How long does it take to see effects from Ceylon cinnamon?
Typically, consistent supplementation with Ceylon cinnamon for 4 to 12 weeks is required before noticeable health benefits, particularly related to blood glucose and lipid levels, become apparent.
Can Ceylon cinnamon replace my diabetes medication?
No, Ceylon cinnamon should not replace prescribed diabetes medication. It is intended to be used as an adjunctive therapy to complement standard medical care, not as a substitute.
Are Ceylon cinnamon supplements standardized?
Many Ceylon cinnamon supplements are not standardized. When purchasing, look for products that explicitly specify 'Cinnamomum verum' and ideally provide information on their cinnamaldehyde content for more consistent dosing.
Research Sources
- https://pmc.ncbi.nlm.nih.gov/articles/PMC3767714/ – This systematic review and meta-analysis by Allen et al. (2013) found that cinnamon supplementation significantly reduced fasting plasma glucose and improved lipid profiles in patients with type 2 diabetes. However, it noted no significant effect on HbA1c and highlighted high heterogeneity and some publication bias across studies, with variable doses and often unspecified cinnamon species.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC10268424/ – Zarezadeh et al. (2023) conducted an umbrella meta-analysis reviewing multiple meta-analyses on cinnamon's glycemic effects. The study confirmed modest reductions in fasting glucose and insulin resistance markers across various populations, including those with type 2 diabetes and PCOS, while emphasizing the need for more species-specific studies due to existing heterogeneity.
- https://www.webmd.com/diet/health-benefits-ceylon-cinnamon – This WebMD summary, referencing peer-reviewed studies, supports the anti-inflammatory and antioxidant properties of cinnamaldehyde found in Ceylon cinnamon. It highlights Ceylon cinnamon's favorable safety profile compared to Cassia cinnamon due to lower coumarin content, while also advising caution regarding supplement dosing and use in vulnerable populations.
Supplements Containing Ceylon Cinnamon powder

Cinnamon 1200 mg
Nutricost

Ceylon Cinnamon
NutraChamps

Organic Ceylon Cinnamon
SuperiorLabs

Blood Sugar Support
DrBerg Nutritionals

Metabolism Natural Lemon Flavor
BareOrganics

Ceylon Cinnamon
Nature's Craft

Cinnamon 1200mg
Type Zero Health

BERBERINE WITH CEYLON CINNAMON
PrimeMD

ADVANCED BLOOD SUGAR SUPPORT
Vthrive THE VITAMIN SHOPPE™

CEYLON CINNAMON POWDER
S2USA

NEW - Ceylon Cinnamon
NUTRA HARMONY

CLEAN CINNAMON Ceylon Cinnamon
TYPE ZERO™
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