Because Asians don't pay much attention to protein's supplement, even in sports, they don't have the consciousness to supplement protein.
On the contrary, some obese people eat too much protein and turn it into body fat instead of muscle.
When you supplement protein, you must combine exercise, or you will get fatter and fatter. But combined with exercise, protein can make your muscles bigger and stronger.
And many Asians have great misunderstandings about some sports. They think that running will only make the calf look thicker and uglier, but they don't know how to run correctly to make the leg stronger and longer. But Europeans and Americans pay great attention to practicing leg muscles.
Actually, it has something to do with our living environment. The living environment of Asians is relatively good, with four distinct seasons. I think maybe we are too comfortable, so our bodies naturally start to relax. Even when we exercise, we don't go all out like Europeans and Americans.
Moreover, Europeans and Americans often eat a whole piece of meat directly, instead of cooking it carefully like us. The food we eat has gone through many processing procedures. In addition to being delicious, there are not many nutrients in it, and what Europeans and Americans eat is simple.
But this is not absolute, because there are still many Europeans and Americans who are overweight, especially Americans, whose obesity rate is the highest in the world.