Barbie's unlikely proportions mean that if she were a real woman, she would be incapable of lifting her head and would have to walk on all fours.
Now Mattel is addressing her unrealistic physical shape by introducing three new Barbies - tall, curvy and petite.
It is the first major alteration to the iconic doll's body shape in its 57-year history.
The original Barbie will remain on sale.
The additional body shapes follow Mattel's recent introduction of seven new skin tones and 24 different hair textures for the doll.
These new dolls represent a line that is more reflective of the world girls see around them - the variety in body type, skin tones and style allows girls to find a doll that speaks to them.
The move follows struggles at the firm that saw it announce a 14% drop in global sales of Barbie dolls last year.
"Yes, some people will say we are late to the game," Mazzocco told Time.com. "But changes at a huge corporation take time."
The new Barbies will be sold online from January 28th at Barbie.com and are set to hit stores later this year.