3. Liam Hoekstra
Liam is one of the strongest kids in the world with a muscle definition that most people can dream of. He was diagnosed with a rare medical condition when he was just a baby. Apparently, he had 40% muscle body at the age of 3. He suffers from myostatin-related muscle hypertrophy which means that Liam’s muscles grow way quicker than anybody else’s. This is pretty incredible, and it gave Liam a great advantage compared to other kids his age. Liam was able to do pull-ups when he was only eight months old. Adult workout enthusiast can envy this 12-year-old boy for his strong body and muscle definition, who now plays for a local hockey team. This video shows Liam Hoesktra when he was just a toddler and already a super kid.