Following a U.S. Food and Drug Administration (FDA) investigation the associated coverage of the popular diet and its potential side effects by Newsweek, Parents' Magazine, and Science Digest, the liquid protein market bottomed out, and Twinlab's revenues declined sharply forcing the company to cut nearly all of its 150 person workforce.
In the 1980s Twinlab branched out formulating new vitamin and nutritional supplements and purchased a publishing company called Advanced Research Press, Inc. (ARP) publishers of the bodybuilding magazine Muscular Development and several other magazines. David Blechman retired in 1996, and passed the title of CEO to his son Ross, while the other sons were installed as corporate officers. He died on July 7 2000. In 2001 Twinlab sold ARP to Steve Blechman who then resigned from Twinlab.
After slumping sales in 2002, the company filed a voluntary petition for Chapter 11 reorganization with the U.S. Bankruptcy Court for the Southern District of New York in September 2003. In 2004, Twinlab Corp., Twin Laboratories Inc. and Twin Laboratories (UK) Ltd. were purchased for $65 million by IdeaSphere Inc. Twinlab is based in Hauppauge, New York with manufacturing facilities in Utah.
One trademark of the company is "Fuel" - the name of their family of sports-nutrition products — for example Creatine Fuel, Ripped Fuel, Glutamine Fuel, etc.
Twinlab currently produces more than 500 different products.