Now that's dedication.
A Korean couple embarked on an intense exercise plan a mere five months ago and have since dramatically altered their physical appearance.
Song Jin Yoo and Shin Ji Hoo have completely altered their body types following their rigorous fitness regime.
He credits his success to eating little and often - he eats 150g of chicken breast, 120g of sweet potatoes, five pieces of almonds, cherry tomatoes, cabbage, and some onions every three to four hours.
While Shin Ji Hoo consumes three to four egg whites, 50g of potatoes, some fruits and vegetables around five times a day.
The results speak for themselves.
Incredibly he went from 83kg (13 stone) with 16pc body fat to 71kg (11 stone) with 5pc body fat. within the 20-week period.
Shin Ji Hoo went from 71kg (11 stone) with 32pc body fat to 49kg (8 stone) and 18pc body fat.
The photos of the couple on on their social media accounts showcase the fruits of their labour, leaving followers astonished at their respective transformations.