My Great aunt, who donated her body to Science (Also in an Open Source way(1)) never drank any Cola, yet they were still way down when she died at the age of 115.
A search on van andel telomeres will give more detail. I have the study somewhere around here, but am not able to find it just now.
(1) Not only did she donated her body to science, she wanted the science to be used for people to learn AND have her name linked to it. To be honest, she thought she would end up on a shelf somewhere after they cut her up. She never thought it would result in so much results in research.
Also because of her, they now have proof that alzheimers is not a given with old age thus a solution is at least possible. There were no traces of Alzheimers found anywhere.