I just discovered that "My Comics Page" (http://www.mycomicspage.com) has archives of Berke Brethed's "The Academia Waltz" -- the strip he did for a university newspaper in the years before Bloom County.
In the strip which shows up in the mycomicspage archives for December 14, 2003 -- and originally ran sometime in 1978 -- shows someone more than 25 years ahead of their time. The strip in question shows someone trying to order a "Whopper hold the bun." Clearly this character was into the low carb lifestyle way back in the late 1970's.
To see the strip try Try http://www.mycomicspage.com/member/feature?fc=aw&uc_full_date=20031214 -- it may work, or may only work if your signed in as a member of mycomicspage.com.