This will tell you how to get a good balance between the balance of food and activity and will educate you about it. It doesn't really tie in with the "geograpghy" part of my blog, but i found it hard to find stuff relivent to it so i decided i would encorporate other usefull things to do with nutritions into my blog.
Starting off-
Energy balance is another word for calories. Your energy balance is the balance of calories consumed through drinking and eating compared to calories burned through physical activity. What you eat and drink is ENERGY IN, and what you burn through physicial activity is ENERGY OUT.