Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Dec 28, 2015
As genetic testing becomes more widely available, nutritionists may be able to offer custom-made diets. And the birth rate of twins continues to increase-- perhaps because fertility treatments are becoming more common. Alison Morris, Antwan Lewis and Dr. Devi Nampiaparampil discuss on Fox 5 NY