Chocoholics pounce on studies showing dark chocolate is good for the heart and contains procyanidins, which help lower blood pressure, according to Mail Online.

But while dark chocolate is better than milk and white chocolate due to the antioxidants it contains, it's also higher in calories and saturated fat.

For example, a 40g serving (4-7 squares) of chocolate that's 85 per cent cocoa has 227 calories and 12g saturated fat (60 per cent of daily limit), but the same amount of Dairy Milk has 210 calories and 7g saturated fat (37 per cent of daily limit).

For instance, a red apple has the same amount of procyanidins as about 47g of dark and it helps save more than 150 calories.