What is the thin line between a chubby or fat toddler? Is there actually a Body mass index for children under 6yo?

You can actually calculate your child's BMI here: http://www.hpb.gov.sg/HOPPortal/gamesandtools-article/HPB-039204 It will tell you if your child is overweight or not. Chubby children may appear to be very adorable, but there's a high risk that this obesity may lead into adulthood, causing potential health issues related to obesity. As parents, we should monitor our child's diet and cut out processed and fatty foods as much as possible. http://content.time.com/time/health/article/0,8599,1735638,00.html