SALT LAKE CITY — Vitamin maker USANA Health Sciences Inc. must pay a critic of the multilevel marketing industry who was forced to defend himself against a lawsuit brought by the company.

U.S. Magistrate Samuel Alba decided on May 7 that USANA owes $142,510 in attorneys fees to a San Diego investigator, Barry Minkow, and his Fraud Discovery Institute.

Alba's order follows U.S. District Judge Tena Campbell’s March 3 ruling that USANA violated California's anti-SLAPP (Strategic Lawsuit Against Public Participation) law for suing Minkow for fair criticism.

Minkow has assailed USANA for its network-marketing business model, once-soaring share price, and a series of flaps involving the credentials of top executives and sales associates.

Minkow served eight years in prison for stock fraud before starting the Fraud Discovery Institute. He came out with his first critical report on USANA in February 2007 when he bought "put" options on USANA's stock in a bet the price would fall.

USANA sued him for defamation and stock manipulation, but dropped the defamation claim last summer. It still has one claim pending, for securities manipulation.

USANA and its Chicago-based public-relations firm did not return calls for comment in time for this story.