> "There is almost no amount of physical activity that can offset excess consumption." This is not consistent with my personal experience. In general I eat wha

> "There is almost no amount of physical activity that can offset excess consumption." This is not consistent with my personal experience. In general I eat what I want, whenever I'm hungry. Sure I try to eat healthy stuff, but sometimes I binge on crap too. I've found that so long as I stay reasonably physically active (nothing crazy, I'd say I average 60 minutes or so of running, cycling, or walking daily), I stay slim. But if I'm not getting that level of exercise for a prolonged period I will start to put on weight. When I'm on vacation I can easily spend hours walking around a city seeing the sites. I'll often get really tired and hungry by the end of the day - it definitely uses up a lot of energy! > "For comparison, a single pastry easily has 200+ kilocalories, and 350mL of sugary soda has 150 kilocalories." But how efficient is your body at actually converting those calories to energy (and subsequently, stored fat)? Surely not anything like 100%! Or to put it another way, there's a lot of calories in your poop ;)