A letter to my teenage daughter, from one athlete to another

Dear Ella,

A couple of months after you were born, I gave up Diet Coke. This might seem like a weird way to start a letter, so just bear with me. I used to drink one Diet Coke a day. Then I quit, cold turkey. And I have not had a diet soda since (or any soda). This will be an important fact later, so remember it.