The Anion gap is the difference in the cations and anions in the body. Cations are positively-charged ions while anions are negatively-charged ions. The serum anions and cations are usually used, but urine measurements can also be used.
There are 60 calories in a Caramel Iced Coffee from Starbucks. Most of those calories come from carbohydrates (93%).
Well, not at Starbucks. There, your tall iced coffee (unless ordered unsweetened) contains a shot of simple syrup and around 90 calories. Still, since coffee in this country doesn't usually come pre-sugared, it's a little surprising. I've been a part of Serious Eats since 2006, when I was Ed Levine's first intern.