educational cartoon (70s or 80s) on the perils of overeating

Hi,
I was wondering if anyone else here is familiar with an educational cartoon that I saw during my gradeschool years (70s to 80s) that was about nutrition and hygiene that had an inflation scene in it. The film followed a number of characters with diet and hygiene issues and showed the pitfalls of each to the extreme.

The only one I remember vividly was a boy who was overweight and was always eating candy. He was sluggish and couldn't keep up with his peers while running in PE and he had candy bars sticking out of his pockets. He gets invited by some sort of mad scientist to go to his candy factory for "just a taste". Though he says he really shouldn't, he agrees that "just a taste" would be ok.

Instantly, he is strapped to a chair and whisked away into the candy factory. A feeding tube is attached to his face which squirts pellet candies into his mouth and two robot hands grasp his jaws forcing him to chew. Humiliating music is played as the chair moves rapily along a conveyer belt from station to station, where he is force-fed various sweets. His belly grows and grows, sticking out from under his shirt, to enormous proportions. I seem to recall seeing little robot hands squeezing his belly, sort of plumping up his fat almost as if they were tickling him.

Seeing this as a young child of probably 7 or 8 years old, this scene kinda traumatized me. It was more traumatic for me than the Violet scene in Willy Wonka because it actively showed force feeding whereas with Violet, the inflation seemed accidental rather than intentional.

My questions are: Has anyone else seen this film? Does anyone know the title? Does anyone know where I can find it, ie: youtube, etc...?

I would be greatly appreciative of any responses.

Thanks,
-Giacomo