Yes, I believe that what there worried about. (btw 5'8" 160lbs).
I worry about them to though. Eating excessive amounts of refined grains, avoiding fats b/c they make you fat, counties calories as their weight loss strategy (even if their calories are from a majority of sugar). This way of thinking is what has spawned from the so called nutrition experts, but all I see is people becoming heavier, type II diabetes becoming more prevalent, and a myriad of other nutrition problems continuing to rise.
My blood work comes back in two days, ill let you know how my physical health is going, but I can tell you I used to eat like them, I was muscular from weight lifting, but flabby, despite training to watch my calories, I was hypertensive, and very unhappy with my weight situation I had delt with since 1st grade.