@joannadolgoffmd, Dr. Joanna Dolgoff

Dr. Joanna Dolgoff, a Roslyn pediatrician, uses Twitter to give nutritional tips and answers questions on how to live healthier. Credit: Photo by Handout
When the 36-year-old Roslyn pediatrician started her “Red Light, Green Light, Eat Right!” program three years ago to combat childhood obesity, she didn’t have the funds for old-school advertising, but immediately found Twitter to be an effective marketing tool. She tweets nutritional tips and answers questions on how to live healthier.

What you missed this week on NewsdayTV NewsdayTV takes a look back at some of our investigations and exclusive stories from this week.

What you missed this week on NewsdayTV NewsdayTV takes a look back at some of our investigations and exclusive stories from this week.