Protein & Nutrition Blog – Marmels

Bar chart of bitter compounds in a dried cocoa bean by weight: polyphenols 12 to 18 percent, theobromine 1 to 3 percent and caffeine about 0.2 percent

Protein & Nutrition Blog – Marmels

Why Is Dark Chocolate Bitter? The Compounds Behind It

by Mo Mandegar, PhD on Aug 22 2026
Somewhere between 70 and 85 percent, chocolate stops being a treat for a lot of people and starts being a test. The bitterness is not a flaw in the bar, though. It is a fairly precise readout of the cocoa bean's chemistry: polyphenols at 12 to 18 percent of dry weight, plus theobromine and caffeine. Here is what each compound contributes, and why a more bitter bar is not automatically a more antioxidant-rich one.
Bar chart of polyphenols per serving: blueberries about 830 mg, Marmels bar about 700, 70 percent dark chocolate 470, green tea 215 and an apple with skin 140

Protein & Nutrition Blog – Marmels

Is Dark Chocolate Anti-Inflammatory? What Research Shows

by Mo Mandegar, PhD on Jul 18 2026
Dark chocolate keeps showing up on anti-inflammatory food lists, and it is not wishful thinking. Cocoa is one of the most polyphenol-dense foods there is, and recent trials link its flavanols to lower inflammatory markers, with high-sensitivity C-reactive protein falling about 8.4% a year on a daily cocoa flavanol dose. Here is what the research shows and how much to eat.
Bar chart of polyphenols in milligrams per 100 grams: unsweetened cocoa about 3,400, pecans and walnuts 1,800, 70 percent dark chocolate 1,664, Marmels 1,450, blueberries 560

Protein & Nutrition Blog – Marmels

Antioxidant-Rich Snacks: Which Ones Actually Deliver

by Mo Mandegar, PhD on Jun 01 2026
The antioxidant score that once ruled food packaging was pulled from official databases in 2012, so how do you actually pick an antioxidant- rich snack? By polyphenol content. On that measure, cocoa and dark chocolate rank near the top, carrying several times the polyphenols of most fruits. Here is how the strongest snacks compare, gram for gram.