A can of cola contains the equivalent of 7 cubes of sugar. A high-sugar drink contains more than 11.25g per 100ml, and a low-sugar drink contains less than 2.5g.
Source: Sugar Swaps – help your kids cut back on sugar throughout the day! @ Change4Life
Source: Food Fact Sheet @ BDA: The Association of UK Dietitions
Image by Janine from Mililani, Hawaii, United States (raspberry lemonadeUploaded by Fæ) [CC BY 2.0], via Wikimedia Commons