Quote origin: "it doesn't just taste good, it's good for you"

I’m trying to track the origin of a common quote/meme:

“[ITEM X] doesn’t just taste good, it’s good for you!”

Largely applied to food items, it now shows up as an ironic joke applied to non-food items as well. (“The band’s new dance remix doesn’t just taste good, it’s good for you!”)

Googling doesn’t turn up a clear source food item. Anyone have any leads?

I think your quote is a morph of “kids loves it 'cause it tastes so good. Mom’s love it 'cause it’s so good for them,” which was later changed to “Moms love it 'cause it’s high in vitamin C!” to work the product name into the slogan.

(meaning HiC)

I think Adam told Eve that one.

I think it’s a line from one of Wilford Brimley’s Quaker Oatmeal commercials but I can’t find anything to confrim this.

In the Dick Van Dyke episode where Rob thinks he’s going bald, in a dream Laura says “Tastes good and is good for you!” just after the man who has an anti-balding tonic says his secret ingredient is mayonnaise. The fact that it is used there in a comedic context strongly suggests it was used seriously in an ad of that time or earlier.

Slogan of Mackeson beer, UK 1950s :
“It looks good, tastes good, and by golly it does you good”

Later changed to:
Mackeson, the Stuart Smalley of beer.

Yeah, I seem to recall hearing the “Not just good, but good for you!” slogan in an advertisement for something or other, but most of the Google hits relate to sperm, and I’m pretty sure they weren’t advertising that.