If someone tried to sell you a product that supposedly cured every ailment, would you believe the salesman?

A set of TV infomercials produced about 10 years ago made that very claim. The ads said Coral Calcium, a supplement harvested from coral skeletons near Okinawa, Japan, and Supreme Greens, a concentration of grasses, vegetables, herbs and sprouted grains, cured every illness from Parkinson's to obesity to cancer.

In addition to the infomercials, telemarketers told potential customers who called the products' 800 numbers that the supplements would combat degenerative diseases. Telemarketers also told sick customers that they should take up to three times the standard dose of Coral Calcium.