I think that undernourishment was common enough that most people were familiar with its effects firsthand. Combine that with ignorance of the ill effects of being overweight and the result is what you have observed.
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Name : Rick29880, Gender : M, Sexual Orientation : Straight, Race : White/Caucasian, Religion : Atheist, City : Springfield, State : OH, Country : United States, Education level : Over 4 Years of College, Social class : Middle class,