Interested in carb cycling?
Carb cycling is a more advanced way to track your macronutrients (proteinsl fats, & carbs) but with varying grams of each on specific days. 
 
This guide teaches you:
What carb cycling is
Who carb cycling can benefit
How to manually calculate your macros
How to maually calculate your macros with carb cycling
How to utilize carb cycling in conjunction with a workout program
How to set up your week
How to track your carbs for your goals
 
I personally carb cycle during my bulking and cutting  phases. It is nice for those who are advanced or those who have hit a plateau or want to grow specific body parts more than others!