When you buy that St. John’s Wort, what are you really getting?

DNA testing shows some herbal supplements are little more than powdered rice and weeds.  That's very alarming to registered dieticians like Debbie Woehler

She says the FDA is already swamped, so it doesn’t have the resources to increase oversight of herbal supplements.  That leads to problems like this.

“A lot of people are paying a premium, and not receiving their herbal supplements,” says Woehler.  “If they can't be sure what's in them, what they're taking, and then it's buyer beware.”

She's also concerned about the possible impact on people with allergies.

“People that have food allergies,” she says, “if they have nut allergies and grain allergies, what is actually in these capsules, or tablets (could make them very sick).”