When adding a new recipe there is often the choice of 'cooked' or 'raw'. So with the example of onions, would I put cooked or raw? They are raw when I add them to the recipe but by the end they are cooked. Weight wise this will make a difference to the final total.
I have been using cronometer for nearly a month now and found it very helpful. Covering so many of the nutrients has made me aware of the days when I have either lacked a particular nutrient or eaten too much of one. I am following low carb under the guidance of my Doctor and aiming for 120g carbs per day.