 I think that's a major problem for a lot of Americans on the standard American diet. But here, rather than me pontificate about this, let's get the skinny from Dr. Sean O'Mara. We'll get the truth from him, and we'll take your calls, too. If you've got a question and you want to join us, or if you're taking supplements, feel free to sound off. The number is 888-914-9149. Doctor, good afternoon. Thanks for being here.