The NIH has release a study that compared the dietary habits of people with and without chronic kidney disease and discovered that drinking two or more colas daily, diet or regular, increases risk two-fold.

The authors of the study say more research is needed, but their findings support the long-held notion that something about cola — the phosphoric acid, for example, or the ability of cola to pull calcium from bones — seems to increase the risk of kidney stones, renal failure and other conditions affecting the kidneys.

I don't smoke, I don't drink, I eat red meat very seldom, I exercise, I brush, floss and see my dentist every six months, I get a colonoscopy every five years. I eat my vegetables.

I'm going to keep on drinking a couple of Coke Zeros every day and hope my kidneys can handle it.