Winning formula: 50 cent touts the benefits of metabolic  resistance training (MRT) in his new book

Famed for his ripped physique, rap star 50  Cent has released a diet and fitness book.

The 37-year-old, whose real name is Curtis  Jackson, told the Todayshow that he first became obsessed with  working out after he was shot nine times and 'hurt pretty bad' in  2000.

In his new lifestyle guide Formula 50 - which  promises a transformation in just six weeks - he touts the benefits of metabolic resistance training (MRT) and a  protein-rich diet.

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