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.