>I have extremely lucky genes and have managed to stay just within the green BMI range despite eating all the carbs and fats you can imagine and at times consum

>I have extremely lucky genes and have managed to stay just within the green BMI range despite eating all the carbs and fats you can imagine and at times consuming 200-300g of milk chocolate a day. >Some of my friends are obese despite exercising heavily every day. An often overlooked factor is how much snacking is done. If you eat "all the carbs and fats", but they're contained to a single meal a few times a week, and the portions are reasonable (ie. you're not stuffing yourself every meal), that has far less caloric impact than someone eating "salad" everyday, but loaded with dressing and snacking voraciously on the side.