Carnitine promising, but no miracle for heart disease

Hype for the dietary supplement carnitine as a treatment for heart disease far outstrips the evidence.

Would you like to find a "natural" way to ease chest pain, reverse heart failure, or stop leg pain? Look no further than the amino acid carnitine, say a handful of popular books, a slew of rosy reports in alternative medicine publications, and countless postings on the Internet.