From Orlando, Fla., at a meeting of the American Heart Association
Herbal weight-loss drug Metabolife 356 can cause subtle changes in a person's heartbeat, the kind of alterations that sometimes lead to dangerous heart arrhythmias, researchers say.
Metabolife 356 is the best-selling weight-loss supplement sold in the United States, accounting for roughly half of that market and garnering nearly $7 billion in annual sales for its maker, Metabolife International of San Diego. The drug contains 18 herbal ingredients, including ephedra, an herb that has been linked to dozens of fatalities.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.