When I was grade school teacher in a Hawaii school with high poverty and too many pudgy students, I attempted to teach them to reach for the white milk at lunch instead of the chocolate milk.  I also taught them to read processed food ingredient labels.  I was successful with some of the children, but guess what happened?  The Principal issued a directive that teachers were not permitted to advise the students to go for the white milk instead of the chocolate milk.  Education is needed to teach people why they should not be eating processed foods with unhealthy food additives.  But whatcha gonna do with the education system won't let teachers educate?