I am mostly Northern European (German, Irish, Swedish, Scottish, French, etc) with very faint (long ago) Native/First Nations and other additions. I am tall for a woman 5'11", and naturally more slender framed. I have gained weight only two points in my life where I have been overweight (but more than 40lbs over)- and ironically following more general advice didnt help, it made it worse. When I was healthy, naturally slender frame I ate high-carb, moderate protein diets. Cutting the carbs out, attempting to eat heavy from vegetable only and lean meats made things worse- I didnt lose any weight until I returned to my old high-carb eating habits. I also eat heavily from cheese/dairy category. This is why I believe that each person's diet is adapted to their ethnicity, DNA, cultural traditions, and should be taken into account. My sister is same build and cannot cut carbs or she remains overweight as well. Once carbs, dairy and fat are added back into our diets, we succeed in dropping pounds easily and quickly. I struggled on the low-carb, high veggie, less meat diet- plateaued at 35 lbs overweight despite exercise. Once I returned to more dairy, carb and meat mixed back in, I returned to a healthier weight. I think people shouldnt ignore their traditional foods at all, because eating things you arent adapted to very well can cause problems. I think its ok to try all kinds of foods, and its important to add variety in, but dont necessarily assume a diet like Mediterranean or Paleo will work for your body. Sometimes the way you have been eating isnt the problem, it can be mostly exercise and stress leading to your issues. My advise from my experience is, dont assume one culture's diet is "bad" and another's is "good". They're all just adaptations and have supported healthy people in those regions for a long time. Eat what seems to work for you, and think about your culture and which foods make sense for you. Dont try to hard to conform to a different body type's diet or different culture's foods, try those things in moderate or spare amounts.