ND…Sean hit on one of the most critical aspects of carbohydrate consumption (i.e. insulin sensitivity).
Yes, I do feel that you should always be tracking your carbohydrate consumption, as well as protein, fat and total kcals.
That being said, knowing how much and when to eat carbohydrate is a function of understanding the body’s physiology. If you understand what types of activities demand and prefer the body’s stores of carbohydrate (i.e. muscle glycogen) and you understand what times of the day your body is most efficiently able to utilize and store carbohydrate, then you can properly assess how much and when you need to eat them.
If you’ve ready Dr. Lowery’s articles–particularly Temporal Nutrition–then you realize that, in the absence of training, first thing in the morning, following an overnight fast, the body is in an elevated state of insulin sensitivity. I have continually alluded to the fact that I feel that during and immediately after training are the most prime times to consume carbohydrate.
The rest of the day and evening–unless you work intense manual labor or play intense sports all day long–your body’s energy requirements will be most efficiently met by oxidation of fats. Therefore, I feel you should eat accordingly.