Protein & Nutrition Blog – Marmels

Bar chart of protein per serving by chocolate type: Marmels Protein Chocolate 12 g, dark chocolate 2 g, milk chocolate 2 g and white chocolate 1 g

Protein & Nutrition Blog – Marmels

Dark Chocolate vs Milk Chocolate: A Nutrition Comparison

by Mo Mandegar, PhD on May 31 2026
The percentage printed on a dark chocolate bar is doing more work than most shoppers realize. It sets the flavanols, the sugar, and the fiber all at once. Dark chocolate carries about five times the flavanols of milk chocolate and several grams less sugar per serving, while milk chocolate's one edge is calcium. Here is the full nutrition breakdown, plus where a high-protein dark bar fits.