Ignoring confounding variables, and a sample size of one caused me to discount this "study". While I'm sure sugar consumption is an issue, this escapade seems like more of a capitalist venture than anything else.
Nobody said it was a study... But if you want to see what effect 40 teaspoons of sugar a day have on yourself then you don't care about anybody else. It's like beeing in a plane that crashes: you don't care that a proper study says that you only have a chance of 1 in 10 milion to die when you are already in a plane that crashes.