500 mg · vegan · gluten-free · 60 caps
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Ceylon cinnamon (Cinnamomum verum), also known as 'true cinnamon' or Dalchini, is the bark of an evergreen tree native to Sri Lanka and southern India. Unlike the more common Cassia cinnamon, Ceylon cinnamon contains negligible coumarin, making it safer for long-term daily use.
Ceylon cinnamon's active compound cinnamaldehyde enhances insulin receptor signaling, improves glucose uptake into cells, and inhibits carbohydrate-digesting enzymes. It also reduces LDL oxidation and exerts anti-inflammatory effects through NF-κB pathway modulation.
Adults with prediabetes, type 2 diabetes, metabolic syndrome, or those seeking cardiovascular protection. Particularly relevant for Indians given high diabetes prevalence.
Pregnant or breastfeeding women, people with liver disease, those on diabetes medication without doctor supervision. Side effects: Rare at standard doses. May cause mild stomach upset. High doses may affect liver enzymes.
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
Key citations: PMID 41412108 (Ceylon cinnamon RCT for T2DM, 2025), PMID 39854533 (RCT on lipid & glucose, 2025), PMID 22518078 (Blood glucose & lipids in diabetic rats, 2012)
SacredBod's longer take on Ceylon Cinnamon Extract — context the structured blocks above don't capture.
Ceylon cinnamon — known in India as Dalchini — is one of the most researched spices for metabolic health. Unlike the cheaper Cassia cinnamon found in most kitchens, true Ceylon cinnamon (Cinnamomum verum) contains only trace amounts of coumarin, a compound that can stress the liver at high doses.
A landmark 2025 randomized controlled trial on 210 Sri Lankan adults with type 2 diabetes found that 500 mg of Ceylon cinnamon extract daily for 4 months significantly reduced fasting plasma glucose and HbA1c compared to placebo. Total and LDL cholesterol also dropped significantly in the 500 mg group. Another 2025 RCT in 150 adults showed an 8.59 mg/dL reduction in fasting blood sugar, with particularly strong effects in diabetic participants.
The mechanism centers on cinnamaldehyde, which mimics insulin action, enhances glucose transporter GLUT4 translocation, and inhibits intestinal α-glucosidase — slowing carbohydrate absorption.
Dalchini has been a staple in Ayurvedic medicine for over 3,000 years, referenced in the Charaka Samhita and Sushruta Samhita for digestive, respiratory, and circulatory disorders. It is classified as a dipana (digestive stimulant) and hridya (heart tonic). In Indian households, it is consumed daily in chai, biryani, and desserts — but supplemental doses provide therapeutic concentrations not achievable through diet alone.
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