Protein & Nutrition Blog – Marmels

Bar chart comparing theobromine content per serving across dark chocolate, milk chocolate, coffee, and tea, with the Marmels Protein Chocolate bar highlighted as the highest theobromine serving

Protein & Nutrition Blog – Marmels

Theobromine vs Caffeine: How Cacao's Stimulant Works

by Mo Mandegar, PhD on May 18 2026
Theobromine is cacao's lesser-known stimulant, chemically a cousin of caffeine but slower to peak and longer to clear. Here is what 30 grams of 70 percent dark chocolate actually delivers, how it compares to a cup of coffee, and why the half-life difference is the reason a chocolate square in the afternoon does not behave like an afternoon espresso.