Colombia's eight-month-old Santiago Mendoza weighs 20 kg — a bodyweight normally associated with children much older.
His doctors have prescribed a diet schedule for him following health concerns.
His therapist Salvador Palacios said, "We have advised a complete diet, his health will be monitored 24/7."
Mendoza and his mother Eunice Fandino go to a clinic for the obese in Bogota, Colombia.
Here's a look at how baby Santiago is coping.