What's inside dark Chocolate, and where does it go in your body?
Contains magnesium, iron and flavanols — along with sugar, saturated fat and some caffeine.
Notable for
Magnesium, iron, copper, cocoa flavanols.
Context
Flavanol studies often use concentrated extracts; a chocolate bar is a treat, not a supplement.
Evidence & sources
Dark chocolate with 70–85% cacao contains about 80 mg of caffeine per 100 g. Evidence: established. Known: Measured food composition data. Unknown: Amounts vary by brand and cacao content. Source: USDA Agricultural Research Service, FoodData Central (SR Legacy) (2019).