Contains berberine — check your medicines before ordering
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Cinnamon Bark Extract: What NCCIH Says About The Evidence

2026 guide  •  6 min read

Short answer: A traditional culinary and medicinal botanical, included for the blood sugar response after meals and for its antioxidant content. NCCIH states that research does not clearly support using cinnamon for any health condition.

Why the evidence is described as unclear

NCCIH notes that studies often do not specify which cinnamon species or plant part was tested — a genuine methodological gap making it hard to draw firm conclusions across the existing research.

The coumarin consideration

Cassia cinnamon also contains coumarin, which is a consideration at high intakes over long periods — a specific, named caution worth knowing if you consume cinnamon from multiple sources.

💡 Worth knowing: may affect blood sugar and could interact with diabetes medicines and blood thinners — cinnamon carries its own, if milder, interaction profile alongside berberine's.

Why this is the gentlest of the three ingredients

It contributes to the berry-spice flavour profile alongside its traditional metabolic role — a dual-purpose ingredient serving both taste and formulation goals.

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Lowest per bottle: $49