6. They Know Their Foods
This characteristic is truly universal among fit people: They know, generally speaking, every food's calories and approximate protein, carbohydrate, and fat content. It's not a case of being idiot savants but rather of having an understanding, a knowledge of food that allows them to make an educated guess. Their assumptions are almost always spot-on. This gift affords them the skill of making better food choices on a moment’s notice.Just as important: They know what one serving of said food really looks like. You can show an effortlessly fit person a whole grain cracker, and even without looking at the label, he or she can accurately predict how many crackers count as one serving. It’s not a gift, actually. It's a skill, and all habits are skills you can master.
This skill is easier to acquire than it sounds. A couple of weeks of label reading is all it takes. There are even apps for your phone and Web sites that provide this information quickly and for free.