What i understood (this is quite new and i haven't had time to research this): Some nutritionists and medical practitioner think that most obesity (the >35BMI k

What i understood (this is quite new and i haven't had time to research this): Some nutritionists and medical practitioner think that most obesity (the >35BMI kind) are caused by hormones (some gland inflammation, like i said i didn't researched this) or prediabetes. Hence why European immigrants are not hit the same as natives in the US, as phylogenetic have quite an impact on hormones production. This was an old theory and some recent research proved that at least it needs to be investigated more seriously. In general hormones effect on human development, while being quite an active field, seems to be still underfunded or at least more ignored than it should be.