health food ???

Why are healthy, natural foods such as veggies and fruits so damn expensive, but the super fattenening burgers and fries are on the dollar menu??? If you are not near home and it’s lunch time. You figure you’ll run through Mcd’s drive thru and a salad is but a double cheeseburger is only a dollar. Or you call up a local family restaurant and ask how much a salad is… for a salad. Yet a burger and fries is only . WHY IS THIS???? I mean if the majority of Americans are overweight, why shouldn’t the food industry lower the price of healthy choices???