The ad was written in my early childhood. "Can you pinch an inch ?", was the tag-line in a Kellogg's commercial decades ago.
In part thanks to that advert, my entire life whenever I can pinch an inch I simply stop drinking my calories. Admittedly it is harder to eat healthy when you are time constrained and poor. But could there be anything faster and cheaper than pouring a glass of filtered tap water ? Can we advise that first before developing more PSAs about nutrition, exercise routines, etc.