Children’s Physicians Medical Group pediatrician Dr. Sarah Lindback explains the 5-2-1-0 rule: 5 fruits and vegetables per day, 2 hours or less of screen time, 1 hour per day of physical activity and 0 sugary beverages. Families who follow these guidelines can establish healthy habits for life, avoiding obesity, diabetes and other health problems. For more pediatric health topic information visit our website at https://cpmgsandiego.com.