"Lipidleggin'" is a science fiction

Science fiction

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

 short story by F Paul Wilson. It was first published in Isaac Asimov's Science Fiction Magazine in 1978.

Plot

The United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 government has outlawed butter

Butter

Butter is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications, such as baking, sauce making, and pan frying...

 and eggs because of their high cholesterol

Cholesterol

Cholesterol is a complex isoprenoid. Specifically, it is a waxy steroid of fat that is produced in the liver or intestines. It is used to produce hormones and cell membranes and is transported in the blood plasma of all mammals. It is an essential structural component of mammalian cell membranes...

 content. Gurney, an antiques dealer in rural New Jersey

New Jersey

New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

discovers several farmers who are producing the 'real stuff' and starts dealing in them, thus becoming a 'lipidlegger'.

The Health Department tracks him down and sends an agent to arrest him, but Gurney is able to blackmail him into forgetting about it and actually becoming a regular customer.