Cold brew calories and fasting I have a question regarding the calorie content of a cold brew concentrate I bought at Trader Joe's and the potential impact on my fast.   
I bought a bottle of Coconut Cold Brew Coffee Concentrate. I was just about to make myself a cup but when I looked at the nutrition info; it says there are 10 calories per 4 fl oz serving and 2 g carbs. The ingredients are just water, arabica coffee, natural coconut with other natural flavours.    
I start my day with 1 cup of coffee with 1 tbls of heavy cream (50 calories) as I have seen that 50 calories is negligible and won't break the fast. Given that info, should I avoid making a cup of the cold brew since I've already consumed 50 calories?    
As a side note (and this might be a total noob question), why does cold brew have more calories than regular brewed black coffee?