No one would argue that excessive sugar is good for health. But in moderation, or with substitutes like agave, honey and molasses, we still indulge a sweet tooth, right? An article coming out in this Sunday's New York Times magazine says, no way. The Times explores the research of UC San Francisco pediatric specialist Robert Lustig, who calls sugar a "toxin" and a "poison." Could sugar really be that bad? Health policy investigator Gary Taubes tells us more.

Check out Robert Lustig's video, Sugar: The Bitter Truth, here.