Further diligent research indicates that the unit for “portions” or “servings” is the humble cup.  The CDC has some nice pictures relating a “cup” to commonly known fruits and vegetables.  What baffles me is that they choose to relate “servings” of oddly shaped items to a measure of volume.

I say we push for “servings” by weight, and that we demand that they be given in THE METRIC SYSTEM!

Who’s with me?