Few modern health controversies are as hot and cold as the supplement debate. In one corner, you have miracle pills touted by TV doctors and infomercials as cutting-edge breakthroughs that can banish belly fat, increase energy and regrow hair lost from male pattern baldness. Some have even started claiming that vitamins can cure cancer.
But in the other corner, you have doctors and other health experts who contend that the safety of most supplements is unknown. The Food and Drug Administration issues dozens of warnings and recalls each year over tainted or toxic supplements.