The craze for fasting and cleansing has produced some fantastic claims, and some decidedly mixed results. Here’s how to separate the hype from the reality — and safely enjoy the benefits of a cleaner, happier body.
Mercury in fish and dental fillings. Lead in old paint. Cadmium and arsenic in industrial wastes. There’s a lot of talk about heavy-metal toxins these days. But how worried should you be, really? And what can you do to protect yourself?