I just posted this reply in another thread during the Holiday weekend:
It's definitely diet. I don't "people watch" much but summer is in full swing here. A few days ago, I was down the beach...fucking fat people everywhere. I mean everywhere. Young women with bulging bellies, rolls of fat, so much cottage cheese I thought I was in the dairy section of the grocery store...guys that look like their pregnant and never did anything more strenuous than look for the remote control. Today, I'm at a lake in one of State Parks...same thing - no matter what the age, "I see fat people". There were 3 girls in shape, all 18 or under and about 3 other guys that ever looked like they did anything physical ever. So there were about 7 of us, out of a few hundred.
I'm on a little excursion last night with a buddy and a few acquaintances and we're looking for a place to eat something quick. Bing-fucking-O, a Muscle Maker Grill (I bullshit you not, they are a chain around here where you can actually get healthy "fast food"). I say, "that's what I'm getting". They walk in with me, look at the menu, grumble something about "too complicated", ask if I'll pose outside the store/signage (no) and after I get my food (the "XXL Turkey Wrap, Brown Rice/Beans, Broccoli, water) these guys head to White Castle and get a 30 pack of mini-mystery meat burgers, fries, and a cup of soda that threatened to be 2 liters. We're in the drive-thru, and for the first time I'm really aware of the madness of our culture - I'm watching the staff bring that crap, and milkshakes to the front-counter, and they are fucking BUSY. By contrast, I was the only one in the MMG. I'm not normally around other people to eat, except my son, so I'm not used to this fast food culture being right in my face - only peripherally. These dudes turned down good tasty food (their stuff is great) and purchased 30 inedible, barely-fit-for-human-consumption "hamburgers" chased with enough soda to send even a normal person into transient-type-2-diabetes.
I'd invest in pharmaceutical companies with an emphasis on heart disease and diabetes meds - in 20 years, more than half the country will be taking that shit. I'm not sure how "shallow" I am anymore, but I aint messing with no fat women. Ever.