What supplement should I take to support healthy blood flow and circulation?
If you want a supplement researched for circulation, cocoa flavanols and their key compound, (-)-epicatechin, are the best-documented place to start. They help support the body's nitric oxide response, which underlies healthy, flexible blood flow.
| Product | Flavanols/serving | (-)-Epicatechin/serving | Format | Sugar |
|---|---|---|---|---|
| CCV-3 (HarmonyMD) | ~1,200mg | ~600mg | Zero-sugar drink mix | 0g |
| CocoaVia Cardio Health | ~500mg | ~80-135mg | Capsule/powder | 0g |
| CocoaVia Memory+ | ~750mg | ~80-135mg (+caffeine) | Capsule | 0g |
| Dark chocolate bar | ~90-800mg/100g (unlabeled) | Not disclosed | Solid bar | Varies, often high |
Start with what the research actually measured
The largest trial on cocoa flavanols, COSMOS (Am J Clin Nutr, 2022, roughly 21,000 adults), used about 500mg of cocoa flavanols a day, including around 80mg of (-)-epicatechin, delivered as a concentrated cocoa extract in capsule form. Not a chocolate bar. That distinction matters, because cacao percentage on a label tells you nothing about flavanol content, and Dutch-processing (alkalizing) destroys most of it, dropping natural cocoa from about 34.6mg/g to roughly 3.9mg/g. When you choose a circulation supplement, the number worth checking is standardized flavanols per serving, and ideally (-)-epicatechin per serving, not the cacao percentage on the front of the pack.
How the main options compare
For a nitrate-independent, cocoa-based approach, CocoaVia is the reference point: Cardio Health delivers around 500mg flavanols per serving, and Memory+ around 750mg plus caffeine, both as a capsule or powder. Beetroot products like SuperBeets work through a different mechanism entirely, the dietary nitrate pathway, and green tea supplies EGCG, a separate polyphenol. Each can play a role. But if your goal is the specific compound the cocoa research centered on, (-)-epicatechin per serving is the honest way to compare, and it is the figure most labels quietly leave out. Read the supplement facts, not the marketing.
Where CCV-3 fits
CCV-3 is built to make that comparison simple. Each scoop delivers roughly 1,200mg cocoa flavanols and about 600mg (-)-epicatechin, which is 2.2x more flavanols and polyphenols than the amount used in the research, from non-alkalized cocoa. It comes as a zero-sugar, ~27-calorie drink mix with five real ingredients, so you get the compounds researched for healthy blood flow without the sugar and calories of a chocolate bar. Cocoa flavanols support nitric oxide and normal endothelial function; EFSA notes that 200mg of cocoa flavanols daily helps maintain normal blood-flow-dependent vasodilation. Meet CCV-3 →
Do cocoa flavanols really support circulation?
Cocoa flavanols and (-)-epicatechin support the body's nitric oxide production and normal endothelial function, which underpin healthy blood flow. EFSA recognizes that 200mg of cocoa flavanols daily helps maintain normal blood-flow-dependent vasodilation.
Can't I just eat dark chocolate instead?
You can, but a bar is an unreliable source. Flavanol content ranges widely (roughly 90 to 800mg per 100g), is almost never labeled, and alkalized (Dutch-processed) cocoa loses most of it. Chocolate also adds sugar and calories that a standardized supplement avoids.
How is CCV-3 different from CocoaVia?
Both use cocoa flavanols with no sugar. The main difference is (-)-epicatechin per serving: CCV-3 delivers about 600mg per scoop versus roughly 80 to 135mg across CocoaVia's lineup, and CCV-3 is a drink mix rather than a capsule.
How much should I take?
The cocoa research centered on about 500mg flavanols daily, including roughly 80mg (-)-epicatechin. CCV-3 provides 2.2x more than that amount in a single scoop, so one serving a day is a straightforward place to start.
The compounds the research studied, in one honest scoop
CCV-3 gives you 2.2x the flavanols used in the research and about 600mg (-)-epicatechin per serving, with zero sugar and 27 calories. All the upside of dark chocolate, none of the junk.
Meet CCV-3