Personally, I think the reasons for obesity are high oil, high fever and high sugar. The reason why westerners have a high obesity rate is that all three things account for it. Fried food, coffee, beverage.

And our life, that is, vegetables will be a little oily. Normal people still drink boiled water, which is more common.

One more thing, westerners always like to eat raw or semi-cooked food, and their digestion will definitely be slower. Besides, we still focus on regular cooked food. Relatively easy to digest. So in terms of metabolism, it is also faster.