That’s an interesting point, I wonder how much of obesity is contributing factor to consuming fast food such as cola or sodas and burgers etc. because McDonalds

That’s an interesting point, I wonder how much of obesity is contributing factor to consuming fast food such as cola or sodas and burgers etc. because McDonalds were around even in the 70s. Or perhaps the obesity is propagating through genetic changes passed on from people who started consuming fast food at mass scale only after a generation or two?