Dark chocolate and magnesium intake

Dark chocolate with 70% cocoa is often highlighted for its magnesium content, which can be a significant portion of the daily requirement. However, this depends on the amount actually consumed.

Portion size affects nutritional value

Nutritional labels show that 100 g of dark chocolate provides 200 mg of magnesium, covering nearly two-thirds of the daily need. But most people eat only a small portion, such as one or two squares, which changes the actual intake.

Nutritional breakdown of dark chocolate

For 100 g of dark chocolate, the Ciqual Table lists 591 kcal, 46.3 g of fats, 17.9 g of sugars, and 12.8 g of fiber. These values reflect the full bar, not typical consumption amounts.

Daily magnesium requirements

The National Institutes of Health recommends 420 mg of magnesium per day for adults. A 100 g serving of dark chocolate provides 200 mg, which is about half of this recommended amount.

Reference for nutritional data

The Ciqual Table from ANSES provides detailed nutritional information for foods in France. For more details, refer to Anses. 2020. Table of composition... as found on Doctissimo.