From the article:
And remember "C Is for Cookie," the Cookie Monster anthem? Well, there's a new song in town, and it's called "A Cookie Is a Sometime Food." And it's sung by Hoots the Owl and a banana, some grapes, a pineapple and an apple. (And, yes, it too is a parody -- this one based on "Porgy and Bess's" "A Woman Is a Sometime Thing").
So Cookie eats his fruit (not the singing ones, of course) enthusiastically. But at the end, he wants his cookies. And gets them.
There is such a thing as going too far. We all watched Cookie Monster eat cookies and didn't end up fat little kids. Childhood obesity is not a problem Sesame Street can take care of.