Supermodel Heidi Klum has kicked off the new year (14) by undergoing the controversial Master Cleanse diet.

The German beauty has been living off a spicy liquid made with lemon juice, maple syrup and cayenne pepper for the past five days, and she has been documenting her progress on her blog.

However, she was "back to solid food" on Wednesday morning (08Jan14) as she shared a snap of her breakfast of hard boiled eggs, tomato slices and avocados.

The Master Cleanse has previously been adopted by stars such as Beyonce, Demi Moore and Jared Leto, who used the liquid diet to shed the 60 pounds (27.2 kilograms) he had gained to portray John Lennon's killer, Mark David Chapman, in 2007 biopic Chapter 27.