I just meant that mildly overweight people wearing well-fitting clothes may not "read" as overweight to the casual observer. Some people think "overweight" means "obese," which makes the 70% figure more startling. It's still a major national health issue.
The average American male seems to carry more upper body muscle mass than, say, your average Indian male. You don't have to look like Schwarzenegger or The Rock to find yourself bumping up against the general guideline numbers.