I've been talking to other people in my diabetes group about the new Coca Cola Life. For me I am asthmatic and as far as I can see all Sugar Free or Diet soft drinks contain Aspartame or Acesulfame K or similar. Even some fruit cordial drinks. These drinks are no good for me as they narrow my airways badly. Being type 2 diabetic I have many tablets to take and can't swallow tablets with just water. I found this Coca Cola Life and it contains natural sugar, not artificial sugar. The sugar it contains is 'Steviol Glycosides'. When I looked it up it says Steviol Glycosides are responsible for the sweet taste of the leaves of the stevia plant (Stevia rebaudiana Bertoni). These compounds range in sweetness from 40 to 450 times sweeter than sucrose. They are heat-stable, PH-stable and do not ferment. Additionally, they do not induce a glycematic response when ingested, thus making them attractive as natural sweeteners for diabetics and others on carbohydrate-controlled diets.
For me one can (330ml) will last me on average 6 hours or a 500ml bottle could last up to 2 or 3 days on a hot day.
I would recommend it if you have to have a soft drink, unfortunately it's not available in pubs, clubs or restaurants yet though. What ever you chose, ENJOY!