5-year-old is super strong...but is he healthy?

On of the topics of today's chat with Kathie Lee and Hoda was 5-year-old weight-lifter Guiliano Stroe, who is in the Guinness Book of World Records for the fastest 10-meter handstand walk with a weight ball between his legs....

Guiliano has become a YouTube sensation, with hundreds of thousand of people watching video of his feats of strength.. But he's also become the center of a controversy as many ask whether or not it's healthy for a child to be working out -- specifically lifting weights -- at this young age. (He's been training since the age of 2, according to the UK Daily Mail). What do you think? Were his parents wrong to allow this or are they just supporting their child's natural interests?