Guys n gals
If you are trying to gain/lose weight, or if you just train and want to know the nutritional breakdown of what you put in to your body... Try this http://www.myfitnesspal.com/ App and Website.
It's awesome I'm well impressed with the variety of foods available on there, for instance it has restaurant meals, brands, shop 'value' ranges.
I needed to document mine for a reason and would never 'calorie count' normally, but this is great if you want to know if you get enough/too much -