Chocoholic

[Barnhart]

If you're looking for the e.q. [earliest quote], mine is:

Once you adopt a diet, stick to it.  Charles Sheron, president of
Charles Sheron Builders in Atlanta cautions: "You really have to psych
yourself up and practice celibacy with calories."  Sheron says he used
to be a "chocoholic," but lost 50 lb. in nine months last year.
"Trimming the fat from overweight executives," _Business Week_, March
29, 1976, p 94

I don't have the 1968 quote (MW10).

This is one of my favorite terms, I'm one, too.

Regards,
David

David K. Barnhart, Editor
The Barnhart Dictionary Companion [quarterly]
barnhart at highlands.com
www.highlands.com/Lexik

"Necessity obliges us to neologize."
Thomas Jefferson-August 16, 1813