We have been told for forever to eat less and move more to lose weight. But the deal is, our bodies aren't regulated by calorie sensors, they are regulated by hormones. The foods we eat impact our hormones on different levels and thus impact our weight differently. Our bodies are a lot more complicated than calories in and calories out. When we increase the number of calories burned through exercise, it becomes even more complicated. You don't have to singificantly change the way you eat if you increase your exercise moderately. If you're doing regular exercises for 30 minutes to an hour a day, you don't have to change how you're eating. If you're doing extreme exercises like running a marathon it can be different. If you're exercising greater than 70% of your VO2max (which would mean you're out of breath and can't easily talk) for more than 90 minutes a day, then your nutrition would likely need to shift. If this is the case, we would start with nutrient timing your carbohydrate...