What exactly is the mayonnaise diet? Googling the term produces various vague references to such a thing, but no specifics. So, like the Dial-A-Dietitian, I have no idea what this diet involves... beyond a lot of mayonnaise and eggs.
My guess is that it was either an alternative name for the
Atkins Diet, or an eccentric variant of it, since the book
Dr. Atkins' Diet Revolution first came out in 1972, which makes the timing about right for this person inquiring about a mayonnaise diet in 1974.
Honolulu Star Bulletin - June 19, 1974
Honolulu columnist Charles Memminger founded the Worldwide I Hate Mayonnaise Club in 1988. Its purpose was to spread the gospel of mayonnaise hatred. It did so by circulating quotations such as, "Mayonnaise, like hollandaise, was invented by the French to cover up the flavour of spoiled flesh, stale vegetables, rotten fish."
Member's would receive an official certificate that they could frame and put on their wall.
I'm not sure if the club is active any more. Its website (nomayo.com) is dead, though you can check out an
archived copy of it at archive.org.
Perhaps all the members saw the light and realized that mayonnaise is the greatest food ever.
I recently learned that banana and mayonnaise sandwiches are considered a southern delicacy. A variant is the peanut butter and mayonnaise sandwich. Or combining all three: the peanut butter, banana, and mayonnaise sandwich.
There's a
Facebook community dedicated to Banana and Mayonnaise Sandwiches. Also, this is apparently one of
Dale Earnhardt Jr.'s favorite foods.
The
Garden & Gun blog traces the popularity of peanut butter and mayo sandwiches (and presumably also of banana and mayo) back to the Great Depression:
Through the hardships of the Great Depression and the lean years that followed, peanut butter and mayonnaise kept many struggling households afloat. They were also the ingredients in a sandwich that was once as popular as peanut butter and jelly in parts of the South...
Newspaper clippings from the national heyday of the peanut butter and mayonnaise sandwich, a period that seems to have begun in the 1930s and continued through the 1960s, provide evidence that the practice of adding mayonnaise to peanut butter could have originated as a way of transforming rough-hewn nut butters into spreadable pastes.
As you eat your sandwich, you probably never realized all the science that went into it. Because, of course, some researcher had to study exactly how the mayonnaise flows off your knife onto the bread. [
wiley.com]