Flavanols vs. Flavonoids vs. Polyphenols: What's the Difference?

Polyphenols, flavonoids, and flavanols are nested categories, not competing ingredients: polyphenols are the broadest family of plant compounds, flavonoids are one large group within them, and flavanols are a specific subclass of flavonoids, the group that includes cocoa's (-)-epicatechin.

From widest to most specific

Picture three concentric circles. Polyphenols are the outer ring, thousands of plant compounds found across fruits, vegetables, tea, wine, and cocoa. Flavonoids sit inside that ring as one of the largest polyphenol families, subdivided into groups such as flavonols, flavones, anthocyanins, and flavanols. Flavanols, spelled with an 'a,' are the innermost circle that matters for cocoa, and their standout member is (-)-epicatechin. So every flavanol is a flavonoid, and every flavonoid is a polyphenol, but the reverse isn't true.

Why the distinction matters for cocoa

When research examines cocoa, it usually narrows to flavanols, and specifically to (-)-epicatechin, rather than to 'polyphenols' as a vague whole. The COSMOS trial worked with 500 mg of cocoa flavanols a day, including about 80 mg of (-)-epicatechin, a flavanol measurement rather than a generic polyphenol count. That's why a label advertising only 'polyphenols' or 'antioxidants' is telling you less than one that names its flavanol and epicatechin amounts in milligrams.

What to look for on a label

Precision beats buzzwords. A cocoa product worth trusting states cocoa flavanols and (-)-epicatechin in milligrams, because those are the measurable, researched fractions rather than a catch-all category. CCV-3® does exactly that, listing 1,200 mg of cocoa flavanols and 600 mg of (-)-epicatechin per scoop, instead of hiding behind a broad 'polyphenol' claim. Individual results vary, but a label that names its numbers is one you can at least evaluate.

Are flavanols and flavonols the same?

No. Flavonols, with an 'o,' like quercetin, and flavanols, with an 'a,' like epicatechin, are different flavonoid subgroups. Cocoa's actives are flavanols.

Is polyphenol just a marketing word?

It's a real, accurate umbrella term, but it's so broad that it tells you little about a specific amount. Flavanol and epicatechin figures are far more useful.

Where does epicatechin fit?

(-)-Epicatechin is a specific flavanol, and it's the most studied one in cocoa.