To reach their conclusion, the scientists analyzed data from the 2010 Global Burden of Diseases Study and recorded how much sugar-sweetened beverages people drank, dividing up the data by age and sex. Then, they figured out how the various amount corresponded to obesity rates. Lastly, they calculated how much obesity affected diabetes, heart disease and certain cancers and determined the mortality rates from these diseases, ending up with the number of deaths that could be attributed to consuming sugary beverages by age and sex.
In 2010 in the U.S., the researchers report that 25,000 deaths were linked to sugary beverages; these drinks were associated with 133,000 diabetes deaths, 44,000 heart disease deaths and 6,000 cancer deaths.