Every type of chocolate has a different sugar content. Dark chocolate, which is high in cocoa, contains much less sugar than milk or white chocolate. The following table shows the amount of sugars in 10 g of chocolate, i.e. a standard portion.
One portion of dark chocolate contributes 4%, milk chocolate 10% and white chocolate 11% to the maximum amount of sugars recommended per day for an average person (strongly recommended by the World Health Organisation). Eating a reasonable quantity of chocolate every day can be part of a healthy diet. Remember that what matters is the total daily sugar intake. If you like the taste of dark chocolate and you want to limit your sugar intake, opt for dark chocolate with a high cocoa content.