Hey,
Last week I had a costa iced cappuccino and was surprised it did not kick me out of ketosis.. I personally wouldn't recommend this until you are in a later phase as it has 5g carbs but I was surprised on researching how many carbs were in everything else!
http://www.costa.co.uk/media/22159/Drinks Nutrition Mar-Apr12.pdf

Last week I had a costa iced cappuccino and was surprised it did not kick me out of ketosis.. I personally wouldn't recommend this until you are in a later phase as it has 5g carbs but I was surprised on researching how many carbs were in everything else!
http://www.costa.co.uk/media/22159/Drinks Nutrition Mar-Apr12.pdf