1. Headline
  1. Headline

Barbara Rolls, Ph.D, holds the endowed Guthrie Chair of Nutritional Sciences at Pennsylvania State University and has served on the advisory council of the NIH's National Institute of Diabetes and Digestive and Kidney Diseases.

She is the author of the "Volumetrics Weight-Control Plan," "The Volumetrics Eating Plan," and three books for health professionals on nutrition, as well as more than 200 research articles.

Discuss:

Discussion comments

,

Most active discussions

  1. votes comments
  2. votes comments
  3. votes comments
  4. votes comments

More on TODAY.com

  1. Kirsty Grant / Kirsty Grant

    See why this baby is smiling... and why his dad is cringing

    9/2/2014 5:26:01 PM +00:00 2014-09-02T17:26:01
  1. Dan Hallman / Dan Hallman/Invision/AP

    Joan Rivers remains on life support, her daughter Melissa Rivers says

    9/2/2014 5:59:58 PM +00:00 2014-09-02T17:59:58
  1. Report: ISIS kills second American journalist

    SITE Intel Group, a jihadist monitoring organization, announced on Tuesday that the Islamic militant group ISIS has killed American journalist Steven Joel Sotloff.

    9/2/2014 5:34:24 PM +00:00 2014-09-02T17:34:24
  1. Another American doctor infected with Ebola

    Another American missionary doctor has tested positive for Ebola, an aid group said Tuesday.

    9/2/2014 5:15:35 PM +00:00 2014-09-02T17:15:35