Some things are worth repeating. Other things are worth shouting from the rooftops. The importance of vitamin D is both of those things.

If I told you there were a kids' shampoo that contained an insecticide, you might not be entirely shocked. It IS shocking. But we've seen worse than that.

Should you just bite the bullet—part with the extra cash—and finally go organic?

If you thought packaged food was bad, you should see what's in the packaging itself.

How good is your doctor at math?

I know it seems like a strange question. But the answer could be more important than you might ever imagine. It turns out that your doctor's less than stellar math skills are likely to lead you to be subjected to unnecessary...and potentially harmful...cancer tests.

Run for your lives! The multis are coming!

That can only mean one thing, of course -- it's time for another comically feeble "exposé" of the imagined dangers, drawbacks, and pointlessness of multivitamins.

Let's face it: There's nothing "diet" about diet soda. It won't make you healthier and it won't even help you to lose weight -- and that's been proven.

Question: What's your stance on bottled water? Some people tell me I shouldn't drink it because the plastic bottles are poisonous. Others tell me I should steer clear of tap water because of fluoride and chlorine. What should I do?

Hey, I've said it before, and I'll say it again, sleeping pills are nothing but bad news.

I've been warning you about their dangers for years now.

Over screening for cancer is nothing short of a national disaster.

PSA tests and mammograms have created a generation of men and women battling the lifelong side effects of devastating treatments they didn't need because the cancers never would have hurt them in the first place.