It's the fast food culture, not your fucking genetics, fatass. I have been reading about the eating habits of the french and the asians (more specifically the japanese) lately and I found some satisfatory answers to how in hell they remain thin and they don't seem as much as obsessed with fitness and calories as the average american. Now I'm talking american as a general term here, because I live in a country in South America that has a lot of influence from the US, specially in food. Junk food is everywhere. I have only visited London, so there's as much junk food there as anywhere, but my fat dad visited France and Italy and came back complaining about how small their plates are, so it's no bullshit. Now talking about the french, if you observe and read the articles, you'll find that their day-to-day plates use simple ingredients and are easy to cook. I cook my own food and it takes less than an hour to chop and boil everything.  Let's go to the main facts: Edit: 5. Food is more of a hunger-killer than a boredom-killer. Take a walk around and you'll see at least one hambeast carrying a jumbo size of some snack, like those sugary drinks from Starbucks in the middle of the day. So, what are the excuses? We should also note that there are very few obese people in these places, the rates are just growing now because tradition is slowly giving place to the fast food culture of the US. Are they genetically different? FUCKING NO, FAT ASS. It's all a matter of what you eat and how much. And unfortunately the eating habits of the average american are pretty unhealthy and caloric. It's things that we learn on childhood that remain with us for life, and what we learn is this toxic bullshit. Some articles you may be interested in reading (now those aren't professional nutriotinists, even those can be ful of bullshit, most writers are people who traveled to those countries and observed the habits)  http://renegadehealth.com/blog/eating-habits-france http://renegadehealth.com/blog/2015/04/20/why-french-people-are-thin https://collegeinfogeek.com/everyone-in-japan-is-thin-and-beautiful-and-so-can-you/ https://zenhabits.net/why-you-almost-never-see-a-fat-japanese-or-how-i-lost-5-lbs-in-tokyo/