What it is
Regulatory status: dietary supplement or food ingredient; not a cardiovascular medicine
Mechanism evidence: human
At a glance
What it is, why people use it, the evidence, and what to know before trying it.
Why people use it
- Endothelial function
- Blood-pressure support
- Cardiovascular risk markers
Evidence at a glance
Short randomized trials show modest improvements in selected vascular and metabolic markers, but hard cardiovascular outcomes and long-term independent product-specific evidence remain limited.
Confidence: moderate
Safety & interactions
Known side effects, interactions and use limits from reviewed sources.
Products may contain caffeine or theobromine and can cause headache, gastrointestinal symptoms or sleep disruption. Chocolate products can add substantial sugar and calories; allergy and medicine interactions require context.
Forms and variants
This review does not automatically apply to:
- ordinary chocolate
- unspecified cocoa powder
- isolated epicatechin
Seen in protocols
Public protocols that include Cocoa flavanols. Open one to see the full context and source.